Thread: 4T65E Manifold Pressure Switch

great, thanks for the help!

I have another question, I have the p1811 code on at all times.

It came on last weekend, about a week after changing the trans fluid. My Grand Prix has 151,000 miles on it. Last time I changed the fluid was at 125,000 miles.

The trans runs pretty well with the light on, no issues. Is it safe the dive it until next Wednesday, until I do a shift kit and solenoid change.