ECM won't shift after programming.
Thread Starter
Staging Lane
Joined: Jan 2014
Posts: 53
Likes: 0
From: Blacksburg, VA
ECM won't shift after programming. 2002 ls6-corvette, and 99 4l60e from Camaro. Both put in 84 corvette.
I had the transmission checked...mechanically it's fine. This combo is awesome except it's only working as a manual trans. If I leave in drive it takes off in second and acts like the the trans is in limp home mode.
If I manually start in 1, then 2nd,etc...it hauls. What should I do? I have a scanner but not a programmer. Do I send it back for the second time to the same guy who did the initial flash, or send to someone else or buy a new ECM and have it flashed (keep this for one the track, as my manual trans setup, hehehe).
This was supposed to be a weekend cruiser, and the lack of shifting is a pain.
I had the transmission checked...mechanically it's fine. This combo is awesome except it's only working as a manual trans. If I leave in drive it takes off in second and acts like the the trans is in limp home mode.
If I manually start in 1, then 2nd,etc...it hauls. What should I do? I have a scanner but not a programmer. Do I send it back for the second time to the same guy who did the initial flash, or send to someone else or buy a new ECM and have it flashed (keep this for one the track, as my manual trans setup, hehehe).
This was supposed to be a weekend cruiser, and the lack of shifting is a pain.
Moderator
Joined: Aug 2010
Posts: 7,323
Likes: 529
From: Ann Arbor, MI
^Right.
And then we need to scan/log what gear is commanded by the PCM and what position the PCM thinks the shifter is in.
Any trans shop will have a good scanner that can perform those operations.
BTW - Limp mode on the 4L60E is 3rd gear, not 2nd gear.
And then we need to scan/log what gear is commanded by the PCM and what position the PCM thinks the shifter is in.
Any trans shop will have a good scanner that can perform those operations.
BTW - Limp mode on the 4L60E is 3rd gear, not 2nd gear.
12 Second Club
iTrader: (10)
Joined: Sep 2005
Posts: 948
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From: From Ohio now in that state up north
If 2002 ls6 tune was put in the pcm it would be a manual. There are a lot of variables to this and more info is needed but i would check what the pcm comes up as in the scanner.
