Idle is rough and wants to stail out ( after a few hours driving and warmed up) also bad smell of gas

Tiny
BLACKOLDSMOBILE 98
  • 1987 OLDSMOBILE 98
  • 127,000 MILES

Fast idel when starting car
Hello:
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
after a few hours driving, the idle is rough and wants to stail out, I have to gas more gas.
the car has 3.8 L 213 CID V6 General Motors engine
I NEED HELP WITH THIS PROBLEM
ALSO THE GAS MILAGE IS very bad
THANK YOU

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Thursday, June 20th, 2013 AT 9:21 PM

1 Reply

Tiny
HMAC300
  • EXPERT
  • 47,465 POSTS

Clean the throttle plate on both sides and iac hole. Then scan for codes and check fuel pressure

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Friday, June 21st, 2013 AT 7:51 AM

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