Search found 1 match
- Sun Oct 30, 2022 11:56 pm
- Forum: General Motors
- Topic: Speedometer correction
- Replies: 0
- Views: 2734
Speedometer correction
I'm new to this. I have alot of automotive knowledge but I'm still trying to figure out tuning. I recently changed my rear-end in my cng van and now the speedometer is way off like 10mph over on the highway. The dealership won't help at all so I'm stuck. I just need to reprogram it to read the corre...