Originally Posted by jeepbrattt
Rev limiter is fine (I thought that was the issue at first but was corrected), when in 4lo if you hit the gas hard it just kills the motor like its getting no gas. Almost immediatly in some gears , others it takes a second but still does it. Was told either a speed sensor on tranny or speed limiter in computer by some . Jeep is at Toms right now, he is pretty sure its the limiter in the computer not a sensor.
On my Jims harness. I have a VSS ( don't know if you do) and that reads back into the ECU..
Now I have a switch to ground wire from my harness that I turn on when in 4Low so that it changes shift points. (supposivly) And adjust the VSS control.
But I am wondering if you have a VSS and in 4 low at high speeds instead of seeing 50 MPH. Maybe you are seeing 150....
I could be pulling something completely out of my ass. But seeing how I have a somewhat similar setup.. It might give you a few ideas.