Ill look into the OCV filter.Clogged Lift OCV filter maybe. Any CEL? You didn't try hitting lift on a cold engine by any chance?
A bit of background: ive had the car since 05. about 3 years ago speedometer went out, around the same time i realized the lift wasnt working. It made sence to me that if the computer didnt know how fast the car was going it might set the engine to safety mode. A friend blew my engine. i had the engine rebuilt. just got it back. speedometer works now but lift still doesn't.