Quote:
Originally Posted by Stereww
This has really got me confused now. Thanks for taking the time to explain. I've been driving around for the last couple days with O/D off just to see what happens, still no CEL. So that "solves the problem". Whatever that means, kind of expected I guess.
Its making more sense now. So when I hit O/D on, the RPMs drop as the tranny goes into 4th.
Would I know it's going into O/D if I could count the "shifts"?
Could I feel 5 shifts? 1st, 2nd, 3rd, 4th and O/D?
As for the TPS, I'm not sure. Obviously I just had my hands on the cable, seemed good to me.
Knowing now though that with O/D off I'm limited to 3rd gear. The different ratio in 4th is making me wonder if that's causing the code? Could the transmission control module be confused with the different ratio and because of that different ratio a different speed at a certain number of RPMs?
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4th and O/D are one in the same.
So the theory being the TCM is expecting a certain RPM from the engine for a certain tranny output speed. And due the different 4th gear ratio, the TCM flags the TC error thinking there is an issue.
I honestly don’t know. Never been involved with a tranny gear ratio change.
