2.2 5 speed s10 speedometer calibration help please
I had to change the rear end in my daily and went from a 4.11 to 3.42 gear ratio. (Had a disk brake rear end and couldn't find a 4.11 in the junkyard) went to the gear tire calculator and nothing was there except for a multiplier. no gear ratio or tire size. Can someone help?
1 Attachment(s)
tune file upload and update
Here is my factory unedited tune file. I was able to calculate my VSS Pulses per mile to 134.644 and the VSS Trans Revs per mile to 3366.1373. I set the drive sprocket ratio to 1:1 and the Trans Revolutions/Mile to the same as VSS Trans. My speedo it dead on but now my upshift light comes on in 5th gear?? I dont see anything that I can change to specifically fix the upshift light unless it was why the the 2 trans revs were different from the factory.
Attachment 139523