sonyman87 Posted May 10, 2006 Report Share Posted May 10, 2006 I emailed a company about buiding a custom transmission for my car. and i asked for the 3.73 gearing. They said i have to reporgram the TCM for the different gear ratio as the computer looks for the gear ratios and when they do not match it will put the transmission into failsafe and will not shift correctly. how much truth is in this and damnit what gearing do i really have.. 1st shifts out at ~41-43mph Quote Link to comment Share on other sites More sharing options...
mihela816 Posted May 10, 2006 Report Share Posted May 10, 2006 They are correct, but the proper term is PCM, powertrain control module. Quote Link to comment Share on other sites More sharing options...
sonyman87 Posted May 11, 2006 Author Report Share Posted May 11, 2006 They are correct, but the proper term is PCM, powertrain control module. \ that makes more sence so how do i get one of those for the odb1.5 that has the 3.73 gearing programmed into it Quote Link to comment Share on other sites More sharing options...
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