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Old 03-05-2023, 12:44 AM   #9
LockDoc
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Join Date: Aug 2006
Location: Montezuma, Iowa
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Re: pcm adjustment

Quote:
Originally Posted by kglowacky View Post
When I had my harness done 3 years ago the programmer/Harness modifier asked me for info on my truck such as rear end ratio. a/c etc. I gave him all the info and I assume he programmed it into my pcm. Well come to find out I gave him the incorrect info on the rear end ratio. I have a 3.70 and he programed a 3.07. When I contacted him 3 years ago I asked him to change it, He replied drive it and see how it works. Well, I tried contacting him and he doesn't respond, I live in Houston and been asking around and can't find anyone who will take my pcm and reprogram it with the correct ratio. Does anyone know of anyone who I can send my pcm to that can do this. I can't believe it can be that difficult. I don't want a 700 dollar tune just a ratio change. Or am I asking for something that is does not affect my daily driving or can't be done.

The only problem with having someone else do it you will have to pay for more credits. (usually around $100) If the person that originally tuned it changes it, all you would have to pay for is his time to do it. It would only take about 15 minutes to do it. It would take longer to hook the computer up than it would to change the ratio perimeters.

LockDoc
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