Have the scanner matching a GPS but the speedometer is approximately 2mph greater than the gps and scanner. Recall seeing a thread on this in the past on this but I could not locate it. Have also tried reducing the VSS Pulses per Mile by the % difference but nothing changed.
Can someone either help me find the older thread or help me with the procedure to correct the speedometer?
Thank you
Steve
2007 GMC Canyon Z71-4x4 | 3.7 I5-Auto | 4" Skyjacker suspension lift | 3" Performance Accessories body lift | 33x11.5x17 tires (going 35x12.5x17) | 3.73 gears | 57 K&N | BPi VS | AMS EaAU 6081 | SSK MAF Adapter | NGK AFX w/ NTK WBO2 | AMSoil fluids
Same boat here- did you find the thread or a solution?
Hawk
Did you set the wheel, tire ,and gears right that used to be the problem on my cousins truck.
Yes. I just bumped up from a 235/75 15 to a 31x10.5. Even using settings from Z71's with a 31x10.5 tire, the speedo still runs about fast.Originally Posted by alex-sycl
Hawk
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