Need help with speedometer recalibration
05-16-2010, 12:39 AM
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Need help with speedometer recalibration Hi there, new guy here. I've got a 99 Trans Am with 3.73 rear end and the speedo is quite a bit off. Adding miles like mad to the od. Have tried and tried to get the speedo corrected to no avail. I do not want to spend $400 on some handheld deal that has much more than what I need on it. Thought it would be a easy fix to just reprogram the comp, HA! Took it to the local Pontiac dealers-no go. Called, I swear, at LEAST twelve diff shops in the area and got so much runaround I couldn't believe it! 'Call so and so', 'did you call so and so? yes I did', 'check with John in the back,he can help you', 'John....'you need a what? why I can't help you,did you try so and so?' YES, I tried so and so!!! I got so many diff phone numbers and people I totally lost track of who was who.WHY is this so ridiculously hard?!? All I need is someone to plug their programmer in,reset my speedo to fix the offset and be on my way! It's not like I won't pay,good night. $40? ok $70? FINE! But I can't even get ANY help anywhere I've tried....HELP!!!!! I'm in Northern Indiana btw...
05-16-2010, 02:41 PM
#3
TECH Enthusiast
Help him out Joe! He can do it. You need to make sure you have the right rear ratio and tire size for a good calibration. Might take a few tunes to setup the shifts also....
