scofolo

I put my factory exhaust back on tonight and the check engine light came on immediately. I pulled the codes and here's what I got:

P0740 - TCC Enable Solenoid Circuit Electrical
P0753 - 1-2 Shift Solenoid Circuit Electrical
P0785 - 3-2 Shift Solenoid Circuit Electrical
P1810 - TFP Valve Position Switch Circuit
P1860 - TCC PWM Solenoid Circuit Electrical

These seem to all be electrical, so did I hit a wire on the tranny or break something? What should I check? While putting the right side exhaust back on, I was tight and I may have hit something, but don't know what I should check for. It shifted hard into first when I pulled it off the ramps but does drive. 1999 A4 Coupe.

zeevette

Sounds like you knocked one of the sensor wire bundles loose. Get under the car and carefully check all the wiring near your install.

scofolo

Well, nothing looks disconnected from the outside. Is there anything on the interior of the tranny that would have come loose that could have created these codes? Any ideas?

patton

are you sure this never happened before? do what he say do what he say. get a good light under there retrace exhaust with both hands slowly just keep looking you bumped some thing off it may be a foot away from pipes but during install pipe hit or broke some thing. just take youre time you will find it after all you caused it

runamuk

There is a plug on the right side of the transmission that you probably knocked loose, it's kind of hard to see so you'll have to get under the car and feel around for it.