What you've described is a real common problem on Chrysler products with a real easy fix. Chrysler uses a lot of Mitsubishi parts so your car may have the same problem. It is caused by disconnecting the battery or letting it run dead, or, as in your case, unplugging the Engine Computer. It loses its memory and has to relearn "minimum throttle" before it will know when it has to be in control of idle speed. Until then it will idle too low, will be hard to start unless you hold the gas pedal down 1/4", won't give you the nice idle flare-up to 1500 rpm when you start the engine, and will tend to stall at stop signs. I don't know if your car is the same but for Chryslers, to meet the conditions for the relearn to take place, drive at highway speed with the engine warmed up, then coast for at least seven seconds without touching the pedals.
Saturday, April 13th, 2013 AT 12:00 AM