MSD 7535 Ignition Kit Installation Instructions

MSD 7535 Ignition Kit Installation Instructions
Programmable Digital-7 with Boost Retard
PN 7535
Parts Included:
1 - Ignition Control, PN 7535
1 - TI Pressure Gauge Harness
1 - MSD Pro-Data+ Disk
4 - Vibration Mounts & Screws
1 - Shielded Cam Sync Harness
1
1
1
1
1
Accessories
MAP Sensor, see page 7
Hand Held Monitor, PN 7550
Inductive Cam Sync Pickup Kit, PN 7555
Non-Magnetic Cam Sync Pickup Kit,
PN 2346
Manual Launch RPM Control, PN 7551
WARNING:
- 9-Pin Computer Harness
- Mag Pickup Harness, PN 8860
- 12-Pin Harness
- Coil Harness
- Power Lead Harness
LED Shift Light, PN 7552
Manual Launch Control w/Shift Light,
PN 8736
Single Pole/Single Throw Relay, PN 8961
Double Pole/Double Throw Relay,
PN 8960
During installation, disconnect the battery cables. When disconnecting,
always remove the Negative cable first and install it last.
Note: Solid core spark plug wires cannot be used with an MSD Ignition Control.
WIRING
Heavy
Red
Ignition supply wire. Connects to battery positive (+) terminal or battery junction.
Note: Do not connect to the alternator.
Heavy
Black
Red
Ignition supply Ground wire. Connect to battery negative (-) terminal or engine block.
On/Off switch wiring. Connects to a switched 12 volt source.
Primary Coil Leads
Orange
Connects to the coil positive (+) terminal. This is the only wire that
makes contact to the coil positive terminal.
Black
Connects to the coil negative (-) terminal. This is the only wire that makes contact to
the coil negative terminal.
WARNING: High voltage is present at the coil primary terminals. Do not touch the coil or
connect test equipment to the terminals while the engine is running or cranking.
Trigger Wires
Violet/
Green
2-Pin
Magnetic pickup, 2-pin connector. Plugs into an MSD Distributor or Crank Trigger
pickup. Violet is positive, Green is negative. Note: When this connector is used, the
White wire is not connected.
White
Trigger input for electronic ignition amplifiers, an ECU’s trigger or points.
Note: When this wire is used, the magnetic pickup wire is not connected.
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2
INSTALLATION INSTRUCTIONS
Accessories
Dark Blue
This wire activates the Launch Rev Limit and is the main reset wire for several features of the
Ignition. When 12 volts are applied to this wire it will activate the Launch Rev Limit. It also resets
the shift light and gear indicator to first gear. It also will select the Launch Retard value and Gear 1
curve.
Light Blue
Burnout Rev Limit. When 12 volts are applied the Burnout Rev Limit is active. This overrides other
rev limits.
It is recommended to have this wire switched from an outside source, such as the crew chief before
the burnout and while staging the car.
Spool-Up
Limit
When the Dark Blue and Light Blue wires are applied to 12 volts at the same time, a fourth rev limit
is activated. This limit is to spool up a turbo during the burnout. When the line-lock or clutch switch
is deactivated, 12 volts is removed from the Dark Blue wire and the Burnout Rev Limit is active.
Retard Stage Wires or Gear Select
These three wires can be used as Retard Stage Activation and/or as a gear select wire.
Pink
Step1 retard enabled with +12 volt input and above Step1 Rpm value and Gear 2 Select.
Violet
Step2 retard enabled with +12 volt input and above Step2 Rpm value and Gear 3 Select.
Tan
Step3 retard enabled with +12 volt input and above Step3 Rpm value and Gear 4 Select.
Note:
When activated at the same time, these retard stages are added together. They are also
added with any Gear Retard Curve or Boost Retard values as well. Maximum retard is 30°.
Yellow
Shift Light output wire. It can handle up to 3 amps continuous to ground when enabled.
Brown/White
RPM/Time/Pressure switch output wire. It can switch up to 3 amps continuous to ground when
enabled.
Yellow/Yellow Output for data acquisition or fuel controls. Note, only two wires are used.
3-Pin Connector, MAP Sensor
Connector Connects to an external MAP or gage pressure sensor.
Brown/Violet
+5 volt supply
Brown/Yellow Ground
Dark Brown
Map Signal
Cam Synchronization
Fiber Optic
This input requires the PN 7555 Inductive Sync Pickup. When this input is used, the 2-pin connector
is not. Note: If this input is not used, the plug or a cover should be installed.
2-Pin Connector
Lt Blue/
Lt Green
This 2-pin plug connects to Cam Sync Sensor, PN 2346, to indicate when cylinder number one is
firing. Note: When used, the fiber optic connector is not used and must be covered.
Gray
Tach output. This wire will provide the same 12 volt square wave tach signal as the tach
terminal on the side of the unit.
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INSTALLATION INSTRUCTIONS
3
Figure 1 Wiring the Programmable Digital-7 Plus Ignition.
PRO-DATA+
INSTALLATION OF THE PRO-DATA+ SOFTWARE
1.
2.
3.
4.
5.
6.
7.
8.
Insert the installation disk into your floppy disk drive.
In Windows, click on Start then select Run.
In the box type, “A:Setup” and press Enter.
The screen will walk you through several steps.
Once loaded, your monitor will have an MSD Graph View logo. Click on it to open the software.
A program will open. Go to the upper left corner of the screen and click on File, then Open.
This will open a menu of part numbers. Select “7535”.
This will open another menu of versions. Highlight and open the “7535vxx.IGN” (xx determines
the versions, such as 02). This will open the Pro-Data+ software for the Programmable Digital7 Plus Ignition.
SAVES AND TRANSFERS
Whenever a change is made to a program, it either must be saved to a file in your PC or it needs to
be transferred to the ignition. You will notice that whenever you make a change to a program, the
bullet next to the modified value will turn red. It will remain red until you save it to a file or to the MSD.
There are two ways to save your files.
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INSTALLATION INSTRUCTIONS
Save to MSD: This step will save any changes directly into the ignition. If you are only
making one or just a couple modifications this works well.
Save to PC: This will save your changes to only show on the PC screen (indicated by a
red bullet point next to any altered values). These modifications will not be active or saved
until you save the file or transfer the information to the MSD.
You can create numerous files on your PC and download them for testing purposes or by saving
programs you used at different races or events.
MONITOR
SOFTWARE
VERSION
BOOST
RETARD
CURVE
NOTES
PROGRAM
STATUS
GEAR RETARD CURVES
TACH
TIMING
MENU
TREE
GEAR
TRACES
BOOST
GAUGE
ICM
Figure 2 Pro-Data+ Screen and Program Windows.
PROGRAMMABLE FEATURES
The following explains the programmable features of the PN 7535 Ignition. The features are listed in
the same order that they show on the Data Editor list in the software. Note that all of the retard
amounts are cumulative and the maximum amount of retard is 30°.
STATS
Stat 1: This is only used with the Hand Held Monitors, PN 7550, PN 7553.
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INSTALLATION INSTRUCTIONS
5
REV LIMITS
Up to four different rev limits can be programmed in 100 rpm increments.
RevBurn: Burnout Rev Limit. This limit is activated when 12 volts are applied to the Light
Blue wire. It is adjustable from 2,000 to 12,500 rpm. Note that the Slew Rev Limiter is disabled
by the Burnout Limit.
RevLaunch: Launch Rev Limit. This limit is activated when 12 volts are applied to the Dark
Blue wire. It is adjustable from 2,000 to 12,500 rpm.
RevMax: Max Speed Rev Limit. This is the overrev limit and is active whenever the Launch
and Holeshot limits are off.
OutCam: Select either a Cam Sync output or a Rev Limiting output that can be used with
MSD components that use rpm modules for the rev limit.
AdjOff: This program enables an automatic compensating rev limiter that will correct trigger
input offsets and variables. It can be turned On or Off.
RPM: Adjustable in 100 rpm increments from 2,000 – 12,500.
Spool-Up: This program gives turbo cars a fourth rev limit to help the engine spool boost
pressure prior to the burnout. It is active when both the Light and Dark Blue wires are
applied to 12 volts at the same time. It is adjustable in 100 rpm increments from 2,00012,500. Default is 3,000 rpm.
START RETARD
Program an amount of retard that will occur while the engine is cranking. This helps reduce the load
on the starter for easier cranking. It is adjustable from 0° - 25° in 1° increments. This is an automatic
feature and will enable below 500 rpm and will deactivate when the engine reaches above 800 rpm.
Default is 10°.
LAUNCH RETARD
This is the time based retard ramp. It can be programmed from 0°-15° in 0.1° increments and from 02.5 seconds. When the Dark Blue Launch/Reset wire is connected to 12 volts, the retard value is
activated and is added to the retard sum. When 12 volts are removed from the Dark Blue wire, the
retard value begins to ramp up to 0° over the programmed time. Once the time is over, the retard will
not be activated again.
STEP RETARDS
There are three step retards that are controlled through three corresponding activation wires or
through rpm. They can also have an rpm point that the engine must reach before the retard becomes active. (A minimum rpm can also be programmed that must be reached before a step becomes active.) A time based ramp can be programmed to gradually bring the retard to its full On
amount, or to ramp the retard amount out (back to no retard) from its setting.
Step 1 – Pink
Step 2 – Dark Brown
Step 3 – Tan
Note: These wires can also be used as Gear Select Indicators. See page 7.
Activation through Wiring: Each step is activated when 12 volts are applied to its
corresponding wire. When the steps are enabled at the same time the retard amounts are
added together. The maximum retard allowed by the Ignition is a total of 30° (including other
retard amounts from a launch, boost or gear retard).
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INSTALLATION INSTRUCTIONS
Activation through RPM: Each step retard can also be activated through rpm. In order to
achieve this, 12 volts must still be applied to the corresponding step retard, and an rpm value
must be selected from the Step RPM menu. When 12 volts are applied, the retard will not
activate until the rpm value is reached. Note that the retard will remain active above this rpm,
even when other stages are activated. It will deactivate when the rpm drops below the set
amount.
Note: If you prefer to activate the step retards through the activation wires and not rpm, then the rpm
value in each of the desired step menus must be set to 800 rpm.
Step Retard Off Delay: This feature will set a time based delay to deactivate the step retards.
This is designed to keep the timing retarded to clear the engine of any nitrous oxide prior to
deactivating the retard. It is adjustable from 0 – 2.5 seconds and the default is 0.5 second.
Step Retard Ramp: Each retard step can be ramped to and from its full retard amount over a
time based program (Figure 3). It is adjustable from 0-2.5 seconds in 0.01 second increments.
Default is 0°.
RPM: The minimum engine rpm
that must be reached before a
step retard is activated.
On: The amount of time it takes
for the step retard to reach its
Retard Degree. Allows a gradual
ramp On time to reach the Retard
Degree. User adjustable from 0.00
to 2.50 sec. (0.01 sec increments)
Off: The amount of time it takes
for the step to retard to reach NO
retard. Allows a gradual ramp Off
time to reach NO Retard. User
adjustable from 0.00 to 2.50 sec.
(0.01 sec increments)
Deg: The amount of retard.
This program will provide a way to momentarily
shut off the ignition output. This can be useful
in some applications to stop the ignition output
during a shift. When the Kill circuit is selected
On, the Tan third stage retard activation wire
will be used to kill the ignition output when it is
connected to 12 volts. Once selected as the
Kill program, the Tan wire cannot be used as a
retard step.
ON
OFF
FULL RETARD
On and Off Retard Step, No
Ramping
OFF
RAMPED
ON
FULL RETARD
Ramping the Retard On
RETARD
MOMENTARY KILL
TIME
ON
RAMPED
OFF
FULL RETARD
Ramping the Retard Off
RAMPED
ON
RAMPED
OFF
FULL RETARD
Ramping the Retard On
and Off
Figure 3 Different Retard Activation Options.
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INSTALLATION INSTRUCTIONS
7
GEAR SELECT
The Three Step Retard wires, Pink (1), Violet (2) and Tan (3) can also be wired to indicate the first
three gear changes to the ignition control. When selected from the Step Wire menu, the ignition
will know that the car is in second gear when 12 volts are applied to the Pink wire, third for the
Violet and fourth when the Tan wire is applied to 12 volts. By using this feature, if you lift off the
throttle and get back on it, the ignition will not count it as a gear change.
Note: When selected, this feature overrides the RPM Drop Gear Select values.
This is a sequenced series meaning Tan (3) will not become active until it sees 12 volts on Pink (1),
and Violet (2). This way, 12 volts do not need to be removed from each wire before the following
gear is selected.
Note: Five and six speed transmissions will have to use the RPM Drop functions.
GEAR RETARDS
This program provides the ability to create a run curve for each gear. Up to six different curves can
be programmed from 800 – 12,500 rpm in 0.1° increments for every 100 rpm. You can program up
to 32 different points on each Gear Map. Also, all of these points are interpolated every millisecond
to create a smooth (no steps) curve.
The number of gears is adjustable under the SHIFT menu, as well as the amount of rpm drop the
ignition needs to see before knowing that a different gear has been selected. Up to six gears can
be programmed. You can also use the Step Retard wires as Gear Select Indicators for the first four
gears.
These retards are mapped out on the Gear Retard chart of the Graph View. In the chart, go to the
View pull down menu and select Trace Box. That will give you a small window to show the different
color gear traces so creating a different curve for each gear is easier.
If you want the same retard curve for all gears, compose the curve, select the Edit pull down menu
and copy the curve, then select Paste All.
BOOST RETARD CURVE
This timing curve can be programmed in relation to boost/vacuum pressure within the intake manifold. The curve can be programmed from 2psia - 45psia in 0.25psia from 0°- 25° in 0.1° increments.
Up to 32 different points on can be input on the Boost Chart. Also, all of these points are interpolated every millisecond to create a smooth (no steps) curve. This curve can easily be edited using
the Boost Curve chart in the Pro-Data+ software. An MSD MAP sensor is required to use this
feature and three are offered:
1-Bar, for n/a engines, PN 23111
2-Bar, for 2-30psia, PN 23121
3-Bar, for 2-45psia, PN 23131
Note: The Boost Retard Curve default is 0° retard.
Rev Average: This allows you to program the number of engine revolutions that occur to
produce an average boost value. It is adjustable in 2, 4, 6 or 8 crankshaft revolutions. This
function is designed to help average the boost pressure to provide an accurate reading.
The default is 4 revolutions which should be ideal for the majority of applications.
PSI Sensor: This allows you to input the specification of the MAP sensor. Select a 15psia,
30psia or 45psia sensor. Default is 15psia.
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INSTALLATION INSTRUCTIONS
ADVANCE
This is a Gear Shift Advance feature that is designed to advance the timing (or remove any retards)
during a shift to keep the combustion chamber temperatures consistent.
Gear: Select the number of gears.
DRpm: Program the rpm drop that indicates a gear change from 200-1,500 rpm.
Deg: The amount of timing that is advanced. This is determined by how much
retard is active. You cannot program more advance than the current amount of retard.
Sec: The amount of time that the advance is active. Adjustable in .01 second
increments from 0-1.5 seconds.
Note: The Step Wire Gear Select program overrides the RPM Drop value for shifts.
CYLINDER COUNT
CylCnt: This is the number of cylinders of the engine. Programmable for 4, 6, 8 and Odd fire 6cylinders (90°/150° only). Once a change has been made, turn the ignition Off and On to reset.
Tach Trigger: There are two choices for the output of the tach terminal on the end panel of the
ignition. The output is a 30° duration 12 volt signal that is compatible with most tachs and data
acquisition systems. The default is Trigger which provides the most accurate signal for rpm
sensing components. The Timing program should only be used when spark timing data is
required by an acquisition control or to fire another ignition.
INDIVIDUAL CYLINDER TIMING
Each cylinder can be retarded up to 10° in 0.1° increments. Adjustments are made through the
CylDeg menu. Default for each cylinder is 0°. A Cam Sync signal for cylinder number one must be
incorporated. The MSD Fiber Optic Pickup, PN 7555, is the easiest or a pickup kit could be fabricated on the cam gear (MSD Kit PN 2346).
The spark sequence, or firing order needs to be considered when selecting the ICT. You can go
through the Cylinder Numbers and place them with the corresponding position, or go to the Sequence window and select from the pre-programmed firing orders.
Spark Sequence
Degree
Sequence
Program
1843
1542
1372
1425
1536
1654
1436
Program the firing order of your engine.
Program the amount of retard of each cylinder. These retard
rates are added to any other retards that are active. Max retard is 30°.
Select a firing order:
Order
Application
18436572
Most GM, Chrysler and AMC V8
15426378
Most Ford V8
13726548
Ford 341/400
142536
Ford V6
153624
Ford, Camaro, Chrysler, AMC V6
165432
Most GM V6
143625
Odd-fire 6-cylinder
RPM/TIME/PRESSURE ACTIVATION SWITCH
This program lets you activate a circuit by supplying 12 volts on the Brown/White wire (up to 3
Amps continuous). This can be activated in one of several ways: RPM, Time or Pressure
RPM Window: Program an rpm value to activate and deactivate a circuit from 800 – 12,500
rpm in 100 rpm increments.
RPM On: Rpm that the circuit is activated
RPM Off: Rpm that the circuit is deactivated
RPM/Pressure Hysterisis: Built in Hysterisis allows the deactivation point to be set lower
than the activation value.
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INSTALLATION INSTRUCTIONS
9
Pressure Activation: Program a manifold pressure activation point from 2 – 45 psia in 0.25 psi increments. This also can be programmed where the deactivation point is less than the activation point.
PSI Switch On: The pressure at which a circuit can be activated through the Brown/White
wire. Adjustable from 0-45psi.
PSI Switch Off: The pressure at which the circuit is deactivated. Adjustable from 0-45psi.
This can be set lower than the activation pressure.
PSI Delay: Delay the activation or deactivation of the pressure switch.
OffDly: The amount of time that the switch delays turning off after the given pressure is
reached. Adjusted from 0-25 seconds.
OnDly: The amount of time that the switch delays turning on after the given pressure is
reached. Adjusted from 0-25 seconds.
Time Based: Program an activation point in 0.1 second increments after the launch. Up to 25
seconds of total time.
OnDelay: The amount of time after launch (12 volts removed from the Dark Blue wire).
Off Delay: The amount of time that the switch stays activated. This can be programmed
from 0-25 seconds. It will always deactivate after 25 seconds.
SHIFT LIGHT
This program lets you select the number of gears (Last Gear), program the shift light to come on
when the holeshot rpm is reached, set an rpm point for each gear and the rpm drop for the ignition
to recognize as a gear shift between each gear. When the correct rpm is reached the Yellow wire is
switched to ground to turn the shift light on.
Launch Light: This programs an rpm window that will illuminate the shift light when the correct rpm
is reached for the holeshot. When the rpm is in this window the light will be on solid. If the rpm goes
high, the light will flash. If the rpm goes low, the light turns off.
RpmHi: The high rpm for the launch light program.
RpmLo: The low rpm for the launch light program.
ShiftLight: Program the rpm point for each gear change.
(1)Rpm
First gear rpm point to shift.
(2)Rpm
Second gear rpm point to shift.
(3-5 gears)
ShiftGear: Program the rpm drop between each gear that the ignition must see to recognize
a shift. Programmable from 200-1500 rpm.
(1)DropRpm
Rpm drop between first and second.
(2)DropRpm
Rpm drop between second and third.
(3-5 gears)
Last Gear: The program lets you select the number of gears to use with the shift light from
2-6 gears. Default is five gears.
ALERTS
This is only used with the Hand Held Monitor, PN 7550. You can program an alert to interrupt the
screen on the monitor. You can select which alerts to show and how often. The alerts are No Cam
Sync and Low Battery.
Fault: Program the number of counts that occur for a Low Voltage alert.
BrownOut 0: This is the count of low voltage resets. This should always be set at 0.
WatchDog: The count of Watch Dog resets. This should always be set at 0.
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10
INSTALLATION INSTRUCTIONS
7535 MO6 Screens
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INSTALLATION INSTRUCTIONS
11
DEFAULT MENU
Notes: 7535V06. Uses menu 7535MO6
MSD Digital Race Ignition.
Factory default data and menu.
7535 MO6
Monitor
Stats
Stat 1
SCAN
RevLim
RevBurn
*Rpm 7000
RevMax
RevMax
*OutCAM
*Rpm 9500
*AdjOFF
RevLaun
RevLaunch
*Rpm 6200
RevLim
Pt 1
Time .00
RevLim
Rpm 12500
Spool
SpoolRevLim
*Rpm 3000
Retards
Start
StartRetard
* Deg10
Launch
LaunchRetard
* Deg .0
* Ramp .50
Step1
Step1
* Rpm 800
* Sec .00
* Deg 2.0
Step2
Step2
* Rpm 800
* Sec .00
* Deg 3.0
Step 3
Step3
* Rpm 800
* Sec .00
* Deg 5.0
StepDly
Step Retards
* OffDelay .50Sec
Gear 1
Pt 1
Rpm 800
Gear1
Deg .0
Gear2
Pt 1
Rpm 800
Gear2
Deg .0
Gear4
Pt 1
Rpm 800
Gear 4
Deg .0
Gear5
Pt 1
Rpm 800
Gear5
Deg .0
RpmTimeSw
* SwSel RPM
RpmSw
*RpmOn 2000
*RpmOff 6000
PsiSw
PsiSw
*PsiSwOn 30.00
*PsiSwOff15.00
PsiSwDelay
* OffDly 2.0Sec
*OnDly 1.0Sec
Gear6
Pt 1
Rpm 800
Gear6
Deg .0
TimeSw
*OnDelay 1.0
*OnTime 2.0
Boost
Pt 1
Psi 2.0
Boost
RetDeg .0
Sensor
PsiSensor
* RevAvg2
*Psia15
Advance
Gear1
* (1) dRpm 600
* (2) dRpm 600
* (3) dRpm 600
* (4) dRpm 600
* (5) dRpm 600
* (1) Deg .0
* (2) Deg .0
* (3) Deg .0
* (4) Deg .0
* (5) Deg .0
* (1) Sec .00
* (2) Sec .00
* (3) Sec .00
* (4) Sec .00
* (5) Sec .00
CylCnt
*CylCnt 8
*TachTrigger
DylDeg
SparkSEQ1
* (1) Cyl1
* (2) Cyl2
* (3) Cyl3
* (4) Cyl4
* (5) Cyl5
* (6) Cyl6
* (7) Cyl7
* (8) Cyl8
* (1) Deg .0
* (2) Deg .0
* (3) Deg .0
* (4) Deg .0
* (5) Deg .0
* (6) Deg .0
* (7) Deg .0
* (8) Deg .0
Shift
LaunchLight
*RpmHi 3200
*RpmLo 2800
ShiftLights
ShiftLight1
* (1) Rpm12500
* (2) Rpm12300
* (3) Rpm 12100
* (4) Rpm11900
* (5) Rpm11700
Gears
ShiftGr
Gear1
* (1) DropRpm 600
* (2) DropRpm 600
* (3) DropRpm 600
* (4) DropRpm 600
* (5) DropRpm 600
LastGr
*LastGear5
SetGear
StepWire 123
*SetGearOFF
Alerts
Alert 1
(1) SCAN
(2) SCAN
Fault
*BrownOut 0
*WatchDog 0
AlertsPer
*Alerts/Scan 0
* SeqUser
Gear3
Pt 1
Rpm 800
Gear3
Deg .0
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12
INSTALLATION INSTRUCTIONS
REV LIMIT WIRING
Figure 4 Typical Wiring of Rev Limits.
Figure 5 Launch Wiring for Clutch Cars.
Spool Rev Limit
Many turbo cars use the Burnout limit when prestaged to build up boost pressure prior to going into the
staged beam where the Launch Rev Limit is activated. MSD added a fourth rev limit, the Spool Limit, that
can be used to help the car spool up boost prior to doing a burnout. This limit is activated when both the
Light Blue and Dark Blue wires are both connected to 12 volts.
Before the burnout - Supply 12 volts to the Dark Blue and Light Blue wires to activate the Spool Rev Limit.
Pre-Staged - Apply 12 volts to the Light Blue wire to activate a lower limit to begin spooling the turbo.
This can be activated through a switch on the brake pedal.
Staged - The Dark Blue must be applied to 12 volts to activate the Launch Rev Limit. This can be
accomplished by connecting the Dark Blue wire to the transbrake circuit and removing your foot from
the brake to deactivate the Light Blue wire.
TROUBLESHOOTING
Every MSD Ignition undergoes numerous quality control checks including a four hour burn-in test. If
you experience a problem with your MSD, our research has shown that the majority of problems are
due to improper installation or poor connections.
The Troubleshooting section has several checks and tests you can perform to ensure proper installation
and operation of the MSD. If you have any questions concerning your MSD, call our Customer Support
Department at (915) 855-7123, 8 - 6 Mountain Time.
LED
The LED on the side of the MSD monitors several operating conditions of the MSD. If the LED indicates
that there is a problem with the ignition system, follow the steps through the Troubleshooting section.
The LED will appear to be on steady at above idle speeds when everything is functioning properly.
A Code 11 will flash if there is a problem with the Cam Sync Signal.
A Code 22 will flash if the supply voltage drops below 12 volts.
The LED will flash for every trigger signal from the distributor or crank trigger. You can take
advantage of this when statically setting the timing when using the White wire to trigger.
•
•
•
AUTOTRONIC CONTROLS CORPORATION • 1490 HENRY BRENNAN DR., EL PASO, TEXAS 79936 • (915) 857-5200 • FAX (915) 857-3344
INSTALLATION INSTRUCTIONS
13
MISSES AND INTERMITTENT PROBLEMS
Experience at the races has shown that if your engine is experiencing a miss or hesitation at higher rpm,
it is usually not directly ignition. Most probable causes include faulty wiring, a coil or plug wire failure,
arcing from the cap or boot plug to ground or spark ionization inside the cap. Several items to inspect
are:
Always inspect the plug wires at the cap and at the plug for a tight connection and visually inspect
for cuts, abrasions or burns.
Inspect the Primary Coil Wire connections. Because the MSD is a Capacitive Discharge ignition and
it receives a direct 12 volt source from the battery, there will not be any voltage at the Coil Positive
(+) terminal even with the key turned On. During cranking or while the engine is running, very high
voltage will be present and no test equipment should be connected.
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WARNING: Do not touch the coil terminals during cranking or while the engine is running.
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Make sure that the battery is fully charged and the connections are clean and tight. If you are not
running an alternator this is an imperative check. If the battery voltage falls below 11 volts during a
race, the MSD current draw will increase.
Is the engine running lean? Inspect the spark plugs and complete fuel system.
Inspect all wiring connections for corrosion or damage. Remember to always use proper connections
followed by soldering and seal the connections completely.
If everything checks positive, use the following procedure to test the ignition for spark. MSD also offers an
Ignition Tester, PN 8998. This tool allows you to check your complete ignition system while it is in the car as
well as the operation of rpm limits, activated switches and shift lights and the Cam Sync Signal.
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CHECKING FOR SPARK
WHITE WIRE TRIGGER
If triggering the ignition with the White wire:
1. Make sure the ignition switch is in the “Off” position.
2. Remove the coil wire from the distributor cap and set the
terminal approximately 1/2" from ground.
3. Disconnect the MSD White wire from the distributor’s points
or ignition amplifier.
Figure 6 Checking for Spark with the
White Wire.
4. Turn the ignition to the On position. Do not crank the engine.
5. Tap the White wire to ground quickly several times (Figure 6). Each time you pull the wire from
ground, a spark should jump from the coil wire to ground. If spark is present, the ignition is working
properly. If there is no spark skip to step 6 on page 14:
If triggering with the Magnetic Pickup:
1. Make sure the ignition switch is in the “Off” position.
2. Remove the coil wire from the distributor cap and set the terminal approximately 1/2" from ground.
3. Disconnect the MSD magnetic pickup wires from the distributor.
4. Turn the ignition to the On position. Do not crank the engine.
AUTOTRONIC CONTROLS CORPORATION • 1490 HENRY BRENNAN DR., EL PASO, TEXAS 79936 • (915) 857-5200 • FAX (915) 857-3344
14
INSTALLATION INSTRUCTIONS
MAGNETIC PICKUP TRIGGER
5. With a small jumper wire, short the MSD’s Green and
Violet magnetic pickup wires together quickly several times
(Figure 7). Each time you break this short, a spark should
jump from the coil wire to ground. If spark is present, the
ignition is working properly. If there is no spark skip to step
6 below:
Figure 7 Checking for Spark with the
6. If there is no spark:
Mag Pickup.
A. Inspect all of the wiring.
B. Substitute another coil and repeat the test. If there is now
spark, the coil is at fault.
C. If there is still no spark, check to make sure there are 12 volts on the small Red wire from the MSD
when the key is in the On position. If 12 volts are not present, find another switched 12 volt source
and repeat the test.
D. If, after following the test procedures and inspecting all of the wiring, there is still no spark, the MSD
Ignition is in need of repair. See the Warranty and Service section for information.
If you experience difficulties when installing your MSD, contact our Customer Support Department at
(915) 855-7123 (8 - 6 Mountain time) or e-mail us at: msdtech@msdignition.com
TECH NOTES
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AUTOTRONIC CONTROLS CORPORATION • 1490 HENRY BRENNAN DR., EL PASO, TEXAS 79936 • (915) 857-5200 • FAX (915) 857-3344
INSTALLATION INSTRUCTIONS
15
TECH NOTES
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AUTOTRONIC CONTROLS CORPORATION • 1490 HENRY BRENNAN DR., EL PASO, TEXAS 79936 • (915) 857-5200 • FAX (915) 857-3344
16
INSTALLATION INSTRUCTIONS
TECH NOTES
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Service
In case of malfunction, this MSD component will be repaired free of charge according to the terms of the
warranty. When returning MSD components for service, Proof of Purchase must be supplied for warranty
verification. After the warranty period has expired, repair service is charged based on a minimum and
maximum charge.
All returns must have a Return Material Authorization (RMA) number issued to them before being
returned. To obtain an RMA number please contact MSD Customer Service at (915) 855-7123 or fax a
request to (915) 857-3344. Send the unit prepaid with proof of purchase to the attention of: MSD Ignition,
Customer Service - RMA #, 12120 Esther Lama, Dock 5, El Paso, Texas 79936.
When returning the unit for repair, leave all wires at the length in which you have them installed. Be sure to
include a detailed account of any problems experienced, and what components and accessories are
installed on the vehicle.
The repaired unit will be returned as soon as possible after receipt, COD for any charges. (Ground shipping
is covered by warranty). All units are returned regular UPS unless otherwise noted. For more information,
call the MSD Customer Service Line (915) 855-7123. MSD technicians are available from 7:00 a.m. to 6:00
p.m. Monday - Friday (mountain time).
Limited Warranty
Autotronic Controls Corporation warrants MSD Ignition products to be free from defects in material and
workmanship under normal use and if properly installed for a period of one year from date of purchase. If
found to be defective as mentioned above, it will be replaced or repaired if returned prepaid along with
proof of date of purchase. This shall constitute the sole remedy of the purchaser and the sole liability of
Autotronic Controls Corporation. To the extent permitted by law, the foregoing is exclusive and in lieu of
all other warranties or representations whether expressed or implied, including any implied warranty of
merchantability or fitness. In no event shall Autotronic Controls Corporation be liable for special or
consequential damages.
AUTOTRONIC CONTROLS CORPORATION • 1490 HENRY BRENNAN DR., EL PASO, TEXAS 79936 • (915) 857-5200 • FAX (915) 857-3344
FRM27023
Revised 08/05
Printed In U.S.A.
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