I reset the tune, but no change. It doesn't appear that the gear ratio or tire size setting have any effect.
Neonhomer, on this programmer I have to input the complete tire size, rather than just height.
Search found 3 matches
- Sun Jul 05, 2009 4:11 pm
- Forum: General Support
- Topic: Speedometer recalibration problem
- Replies: 6
- Views: 2969
- Mon Jun 29, 2009 4:56 am
- Forum: General Support
- Topic: Speedometer recalibration problem
- Replies: 6
- Views: 2969
RE: Speedometer recalibration problem
Mike,
I think that you mean the tunes weren't originally modified to input the stock tire size, axle ratio, etc. Did I understand you correctly? I did input that information when I started using the programmer, and it was there when I modified it for the new tire size a few weeks ago. The thing is ...
I think that you mean the tunes weren't originally modified to input the stock tire size, axle ratio, etc. Did I understand you correctly? I did input that information when I started using the programmer, and it was there when I modified it for the new tire size a few weeks ago. The thing is ...
- Wed Jun 24, 2009 3:27 am
- Forum: General Support
- Topic: Speedometer recalibration problem
- Replies: 6
- Views: 2969
Speedometer recalibration problem
I have a 2004 Chevy 4500 with the Duramax LLY motor, using a U7185 programmer (I believe v2.02?). I just changed tires/wheels from the stock 19.5" to a set of 22.5". Tried to use the programmer to recalibrate the speedo, it takes the tire size fine, loads the tune, but the speedometer is always off ...