2001 grand am idle and shift problems
Hey, new to this forum. Got myself a new to me 2001 gr am. 2.4l. Idles at 1400rpm hot and shifts really late driving. Unplug the tps when running and the idle returns to normal so I replaced it. It changed nothing, it still runs the same. The tps shows 7%throttle and .47volts in the datastream. Has no codes and no apparent vacume leaks.