Ran across this from a Mitchell manual. Great info if your working with the PCM and tuning the trans side of things. Doesnt go into the nitty gritty, but its enough to give a good idea of whats going on. Ive been looking for this since Im working on the trans code. Been shooting in the dark up to now. Nice to see that I guessed mostly right, anyway...


http://home.comcast.net/~grayman99/m...e-controls.pdf

Yeah, that one is worth saving. I definitely plan to investigate going to the 4L60E when it comes time to replace my tranny.

Great read there Dimented

Now I just need to get some warm weather and get off my butt to install the sonnex fix on my PWM TCC solenoid in my 1998 Express to get rid of the P1870 TCC slippage code that I keep getting.