I have a 1990 Chrysler Convertible with a 3.0 litre engine and automatic transmission. When I first start the car, it has a smooth quiet idle and plenty of power. Once it reaches the normal operating temperature, once I stop it then try to restart it, the idle is erratic. The tach will just up and down from 750 to 1500 rpms, then cut out. If I try to restart it immediately, it won't as if it's not getting either fuel or spark. If I let it sit for about 5 minutes, it will start back up and run smooth once again, with no movement of the tach needle. It idles then at 1100 RPM in park and 750 rpm while idling in drive. I have checked the codes after reseting the computer. They are 12 (no biggie) 35, 42, 54 and 55 (end of codes). I changed three of the 4 relays under the hood. The only one left is the starter relay, which seems to not be a problem. This car does not seem to have an EGR valve or an Ignition control module attached to the distributor. The ASD relay has been changed. Any suggestions?
Monday, June 10th, 2013 AT 4:57 PM