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How to Set Up a Wideband in HP Tuners
This guide will take you step by step through the process of setting up a wideband O2 sensor in your HP
Tuners VCM Scanner.
Before you begin, if you are using an Innovate LM-1 that you have NOT YET reprogrammed the Analog
output for 0-5 volts (it is set to 1-2 volts at the manufacturer), you MUST watch the first part of the
video BEFORE you begin setting up the VCM scanner for the wideband.
If you do not have an LM-1, or if your LM-1 has already been reprogrammed then you may proceed with
the steps using the video as a guide as well. You may skip the opening part of the video that shows
reprogramming the LM-1 using the LM Programmer software.
Items Needed:
1. HP Tuners VCM Suite Software
2. Laptop
3. Wideband (we use Innovate Motorsports LM-1; however, this guide will work with any
wideband)
4. How to Set Up a Wideband Video, available on our website in the free downloads section.
5. Wideband Offset spreadsheet, available on our website in the free downloads section.
Document Content:
This document is broken out into three sections:
1. Setting up the Wideband in the Table (Primary) which starts on page 2.
2. Setting up the Wideband in the Charts Display which starts on page 10.
3. Setting up the Wideband in the Gauges Display which starts on page 14.
Follow each section in order.
To learn more about The Tuning School’s products, please see page 17.
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Procedure to Follow:
Section 1: Setting up the Wideband in the Table (Primary)
Step 1:
Open your VCM Scanner and make sure that there are no log files open.
Step 2:
Select Displays on the toolbar and then select Table (Primary) from the menu list. This will open the
Table Display box.
Step 3:
Right click on EIO Input 1 and select Insert from the list. This will Bring up The Insert AUXs box.
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Step 4:
Expand the User Defined tree by clicking on the plus sign. Double click on Configure User Defined to
select it.
Step 5:
The Configure User Defined Enhanced IO Inputs box will appear. The numbers represent five possible
sensors you can add. Select a number that is undefined by clicking on it once. This will highlight it blue.
Step 6:
Name your wideband and enter an abbreviation for your wideband (for example LM1 Custom). In the
pull down menu for Sensor, select Air Fuel Ratio. In the pull down menu for Units, select afr.
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Step 7:
Next we need to determine the values needed to properly scale the chart. We can do this by inputting
values into the Wideband Offset Spreadsheet. This spreadsheet is provided for free download from our
website. See the list of items needed on the first page of this document for the spreadsheet location on
our website.
Open the Wideband Offset Spreadsheet. There are two tabs in this spreadsheet. The first is the
Calculator tab. This tab is where you can enter your wideband data (i.e. volt range and afr range). The
second tab is the Common WB data tab. This tab has the wideband data for some of the most popular
widebands on the market. If yours is not listed, you can check the information that came with your
wideband or look on the manufacturers’ website for specifications.
Step 8:
Click on the Common WB data tab. For this example we are going to use The LM-1 set up for 0 to 5
volts. See next page for screenshot of this spreadsheet information.
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Step 9:
Click on the Calculator tab. Enter the LM-1 voltage under Volts, then enter the afr units under Units
(afr).
Step 10:
Go back to your HP Tuners VCM Scanner screen. The Configure User Defined Enhanced IO Inputs box
should still be on the screen. Enter the data from the HP Tuners Formula section of the spreadsheet into
the text boxes to the left of the chart on the Configure User Defined Enhanced IO Inputs box. For our
example, enter the value of 10 into the box to the right of the plus sign and enter the 0.5 into the box
below the volts text. This will rescale the chart to 0 to 5 volts and 10 to 20 afr which matches how you
previously programmed your LM-1 (our example). See both screenshots on the next page for examples.
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Step 11:
Close the Configure User Defined Enhanced IO Inputs Box. A dialog box will appear asking if you want to
commit the changes. Select yes.
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Step 12:
You will notice that your wideband is not in the Table (Display) yet. To get the wideband to display here,
you will need to add it. Right click on EIO Input 1 and select Insert from the list. The Insert AUXs box will
appear. Expand the User Defined tree and the custom wideband that you just finished creating should
be displayed in this list. Double click on it to insert it into the Table (Display).
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Visit us on-line at http://www.thetuningschool.com or by phone at (727) 264-8875
Step 13:
Close the Insert AUXs box.
Step 14:
Plug in the HP Tuners interface into the vehicles’ computer. Be sure that the car is in a well ventilated
area with the parking brake on or the vehicle in park.
Open the Table (Display) if it is not already open. Verfy that your wideband is on and start scanning with
the VCM Scanner.
Step 15:
With the car idling, monitor your wideband display and the wideband reading in the Table (Display).
If there is a difference from what the VCM Scanner is reading and what the wideband is reading, you
have a voltage offset error. You can fix this in the Wideband Offset Spreadsheet by following steps 16
through 19. If you have no error, you are done with this portion of the exercise. Your next step is to add
the wideband readings to the chart display. That section starts on page 10.
Step 16:
Write down the difference you see between the VCM Scanner readings and the wideband readings.
For example, if the VCM Scanner is reading 14.0 air/fuel ratio and your wideband is reading 14.6 air/fuel
ratio, then there is a -0.6 offset (14.0 – 14.6). If the VCM Scanner is reading 14.0 air/fuel ratio and your
wideband is reading 13.4 air/fuel ratio, then there is a 0.6 offset (14.0 – 13.4).
It is important to distinguish if you have a positive or negative error (always subtract the wideband
reading from the VCM Scanner reading).
Step 17:
Open the Wideband Offset Spreadsheet. Enter the offset difference you found between the VCM
Scanner and the wideband (step 16) into the Offset Adjustment section of the spreadsheet (see
screenshot on the next page for location). For our example, we had a -0.6 offset, so we will enter -0.6
into the spreadsheet.
Inputting a value in this portion of the spreadsheet will update the HP Tuners Formula section of the
spreadsheet. In our previous example, the values in the HP Tuners Formula section were 0.5 and 10.
The updated values for our example are now 0.5 and 9.4.
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Step 18:
In the VCM Scanner, open the Table (Primary) if it is not already open. Verify that no log files are open.
Right click on EIO Input 1 and select Insert from the menu. The Insert AUXs box will appear. Expand the
User Defined tree and double click on Configure User Defined. The Configured User Defined Enhanced
IO Inputs box will appear. Select your Custom IO Input from the list by clicking on it. In our example, it
is called LM1 Custom.
Enter the new HP Tuners Formula values from the Wideband Offset Spreadsheet into the box next to
the plus sign. In our example, the value to enter is 9.4 (see screenshot above and screenshot on next
page). Close the Configure User Defined Enhanced IO Inputs box and click yes to commit the changes.
Now is also a good time to save your config file again (remember to save as with a new file name).
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Step 19:
Repeat step 14 and 15 to verify that the changes that you made fixed the voltage offset error. If there is
still a noticeable error, repeat steps 16 through 19 until the error is dimished.
Setting Up the Wideband in Charts Display
Step 1:
Open the VCM Scanner if it is not already open. Select Displays on the toolbar and then select Charts
from the menu list. With the charts display open, right click anywhere on the chart and select Chart
Settings from the menu. The Chart Configuration box will appear.
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Step 2:
With the Chart Configuration box open, expand the Chart 2 tree by clicking on the plus sign next to Chart
2. We are going to replace the Wideband spot on the chart with our custom wideband that we just set
up. For our example, that is the LM1 Custom. Select Wideband from the Chart 2 tree.
Step 3:
Click on the text “click to insert or change” next to PID. The Insert Parameter box will appear.
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Visit us on-line at http://www.thetuningschool.com or by phone at (727) 264-8875
Step 4:
On the Insert Parameter box, under the AUX Input List, expand the User Defined Tree. Double click on
the text for the wideband that you just set up in the previous section (in our example, this is LM1
Custom).
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Visit us on-line at http://www.thetuningschool.com or by phone at (727) 264-8875
Step 5:
Verify that the units displayed are afr. Update the Max and Min values. For our example, this will be 20
for Max and 10 for Min.
Step 6:
Close the Chart Configuration box and click yes to commit the changes. You should now have your
custom wideband displaying in the Chart Display. Do not forget to save your config file.
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This product is available for free download and is not to be sold by any third party. Express permission is
given to make copies of this product for educational purposes only.
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Visit us on-line at http://www.thetuningschool.com or by phone at (727) 264-8875
Section 3: Setting up the Wideband in the Gauges Display
Step 1:
Open the VCM Scanner if it is not already open. Select Displays on the toolbar and then select Gauges
from the menu list. With the Gauge Display open, right click on the left-hand gauge (typically Speed)
and select Properties from the menu. The Gauge Properties box will appear.
Step 2:
Click on the text next to PID (there might be writing here or it may be ghosted writing that says “click to
insert or change” – make sure you are selecting a PID and not a sensor). The Insert Parameter box will
appear. See next page for screenshot.
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Visit us on-line at http://www.thetuningschool.com or by phone at (727) 264-8875
Step 3:
On the Insert Parameter box, under the AUX Input List, expand the User Defined Tree. Double click on
the text for the wideband that you just set up in the first section (in our example, this is LM1 Custom).
This will update the Gauge Properties box with the new PID.
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given to make copies of this product for educational purposes only.
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Visit us on-line at http://www.thetuningschool.com or by phone at (727) 264-8875
Step 4:
Verify that the units displayed are afr. Update the Max and Min values. For our example, this will be 20
for Max and 10 for Min. You can also set alerts for this gauge. In our example, during a wide open
throttle run, we want to set an alert to notify us if the air/fuel ratio exceeds 13.5. We set the Alert
Upper value to 13.5. The gauge will turn red if 13.5 air/fuel ratio is exceeded at any point.
Step 5:
Close the Gauge Properties box and select yes to commit the changes. Your custom wideband will now
be displayed with the gauges. Do not forget to save your config file.
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This product is available for free download and is not to be sold by any third party. Express permission is
given to make copies of this product for educational purposes only.
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Visit us on-line at http://www.thetuningschool.com or by phone at (727) 264-8875
About The Tuning School, Inc.
The Tuning School has been teaching automotive enthusiasts and shop owners around the world how to
tune since the beginning of 2008 using two formats: live seminars and learn-at-home courses. The
world of tuning used to be a dark, magical place where anyone with an ounce of tuning knowledge kept
their secrets to themselves and beginners rolled the dice on actually learning how to tune. With The
Tuning School, all that has changed!
Our goal is to help you learn and that is why we offer one year of free support with all our tuning
related courses. Ian Thomson, our support technician is always available to answer your calls Monday
through Friday from 8:30 am to 5:00 pm EST.
Not only do we teach people how to tune, but we also sell tuning related products. We sell the full line
of products for HP Tuners, Innovate Motorsports and Abaco Performance. You can purchase our
products with these other tuning related products as package deals and save money! Visit our website
for more details.
Beginner’s GM Learn-At-Home Course
Learn to use HP Tuners specifically on LSx cars
One full year of tuning technical support included free
Designed so that you can start tuning the day the course arrives at your home
Full 200+ page color workbook with screen shots including details on what certain tables are, how
they work and how/why to modify them
Laminated Tuning Checklists (specific to each car type - bolt-on, heads/cam and/or forced induction)
Includes a CD-ROM with tuning files and videos of certain more complex tables
Many shops and enthusiasts world-wide have used this course to learn to tune the right way
Advanced GM Learn-At-Home Course
Learn to do advanced tuning with HP Tuners software specifically on LSx cars
One full year of tuning technical support included free
Designed so that you can start tuning the day the course arrives at your home
Full 200+ page color workbook with screen shots including details on what certain tables are, how
they work and how/why to modify them
Includes a CD-ROM with tuning files and videos of actual tuning of advanced topics
Perfect for the shop or enthusiast who wants to take their tuning to the next level
Live Seminars
We offer all our classes in a live seminar format. Seminars are scheduled on Saturdays and Sundays
from 8:30 am to 5 pm each day. That’s 16 hours of training with hands-on dyno tuning experience
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Visit us on-line at http://www.thetuningschool.com or by phone at (727) 264-8875
during each class! We conduct our classes at our training facility in Odessa, Florida (just north of Tampa)
and select locations throughout the country. To see our current class schedule, please visit
http://www.thetuningschool.com/seminars.html.
Ford Tuning
Ford tuning is coming! Our project car, a fox body Mustang with a 2006 engine and transmission
transplant is almost complete. Our Ford related tuning materials will be ready in mid-2010. Watch the
website for more details!
HP Tuners Products
We sell the entire line of HP Tuners products. Did you know that if you purchase your HP Tuners credits
with us, you receive 5% off? Order on-line at http://www.thetuningschool.com/software.html or call us
at (727) 264-8875. Don’t forget to have your HP Tuners Serial Number ready when you place your
order!
Innovate Motorsports Products
We sell the entire line of Innovate Motorsports products. We keep stock of the more common
widebands, including the LM-1, the LM-2 and exhaust clamps. Most other items are available within
one day.
Package Deals
If you are looking to save money, we offer many different package deals with the various products that
we sell. Visit http://www.thetuningschool.com/packages.html for more information.
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