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-   -   I'm trying to convert to lambda using dynojet commander (https://ls1tech.com/forums/pcm-diagnostics-tuning/1984597-im-trying-convert-lambda-using-dynojet-commander.html)

Tramminc Apr 15, 2026 05:31 PM

I'm trying to convert to lambda using dynojet commander
 
I have a dynojet wideband commander hooked up in my car, which is plugged in the Hptuner module. Anyone know how to convert it to read Lamdba. I tied everything I can think of including calling Dynojet themseves, they counld help.
Thanks

gametech Apr 15, 2026 06:21 PM

How do you have it "plugged in" to what HPT module? Details matter.

Tramminc Apr 16, 2026 07:51 AM

Plugged into the HP Tuners MPVI1 (Multi-Protocol Vehicle Interface. input # 1 also using a ground. It does work for AFR but I need it to show lambda.

https://www.dynojet.com/amfile/file/.../category/125/

FrankieD Apr 16, 2026 09:00 AM

Software Configuration (VCM Scanner)
Once wired, you must tell the software how to convert that voltage into Lambda.

1.Add Channel: Open VCM Scanner, click Add Channel, and find MPVI A/D Input 1.
2. Apply Transform: Right-click the newly added channel and select Transform.
3.Select Wideband: Navigate to Oxygen Sensors > Equivalence Ratio (Lambda) or Air-Fuel Ratio.
4. Custom Linear Equation: If the Dynojet preset is not available, select Custom and enter the linear formula for Lambda.

.Lambda Formula: Lambda=(Voltage x 0.16) + 0.68
(Verify this against your specific unit’s manual).




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