Have 91 Cav 2.2TPI auto w/ 108K miles-just bought it, it idles at 1500 in neutral and 1250 in drive. When warmed up it idles at 2000 when stopping at light then slowly "winds" down to the 1250. whats up? Sticker on inside hood says it cant be adjusted. Do I have a lazy sensor somewhere?
thanks
Could be a few things, such as a vacuum leak, throttle position sensor, or the idle air controller. If you pick up a haynes or chiltons manual for your car it will go indepth on how to test those sensors and point you to the problem.
