recalibrating speedometer....

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Apr 19, 2009 | 08:55 PM

CobraKllr_99

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From: Amarillo, Tx

recalibrating speedometer....

Hey guys I put some 3.73's in my 99 z/28 camaro and need my speedometer re-calibrated. I have a gm tech 2 scanner and was wondering if I could do it with that. I know I could but I would have to find a camaro that came with 3.73s from factory and use its vin number but to my knowledge they didn't make one. Has anyone tried to do it this way? Is there a certain code that people have used and will it work? If not I guess I will take it to a guy and have him tune it.

Thanks,
Sheldon

Apr 19, 2009 | 09:09 PM

jay_lt4

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tech 2 will not help you, and no 4th gens came with 3.73 from the factory, you need to have your pcm re-programmed, hand held tuner or send it to someone

Apr 19, 2009 | 10:41 PM

CobraKllr_99

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From: Amarillo, Tx

Quote:

Originally Posted by jay_lt4

tech 2 will not help you, and no 4th gens came with 3.73 from the factory, you need to have your pcm re-programmed, hand held tuner or send it to someone

yes, I knew they didn't come with them. but just wondering if there was a code that might work. but I guess not. Thanks.

Apr 20, 2009 | 11:49 PM

captainwizbang

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Quote:

Originally Posted by CobraKllr_99

yes, I knew they didn't come with them. but just wondering if there was a code that might work. but I guess not. Thanks.

Just so happens I have a Hypertech PP III I don't need. I purchased it for the same reason years ago, but now I have EFILive and don't need it. I'll sell it to you for a reasonable price. You can adjust a number of things beyond the gears if you like.

http://www.hypertech.com/Products/Po...ogrammer%20III

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