Low idel when coming to full stop car
I have 1987 oldsmobile 98 regency brogham with 127,000 miles on it.I replaced the following.
1. New battery
2. A new Alternator
3. New battery cables.
4. New Spark Plugs
5. New idel air control
6. New icm Ignition Module
7. New ecm compter control module with a new eprom for gm vintage warehouse
8. The car now has no codes from the computer. AFTER IT WAS INSTALLLED
9. Rebuild tranmission
after a few hours driving, the idle is rough and wants to stail out,
the car has 3.8 L 213 CID V6 General Motors engine
is there any others sensors that could case this problem
how about egr value & tp sensor
I NEED HELP WITH THIS PROBLEM
ALSO THE GAS MILAGE IS very bad & gas smell from tail pipe after car is parked.