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Poor Idle and Surging at a stop

Tiny
GZ41570
  • MEMBER
  • 2002 DODGE CARAVAN
  • 95,000 MILES
My 2002 Dodge Caravan 3.3 V6 has a very rough idle and surges at the light at times trying to go. I have replaced the Map Sensor and the Throttle Position Sensor and it continues to run very badly. I live in Honduras as a missionary so I don't have the convenience of Auto Zone Code Scanner. I think it all started with bad gas and although I've run two bottles of Fuel cleaner through the engine it continues to run very poorly and use a TON of gas. Please help if you can.
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Thursday, February 17th, 2011 AT 1:06 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Engine running rough or misfiring can be cause by the following:

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

1.Defective spark plugs
2.Inadequate spark/coil,defective spark plug wire.
3.Lack of compression
4.False air leakage.
5.Faulty fuel injectors.
6.Insufficient fuel pressure.
7.Contaminated fuel.
8.EGR valve that is leaking.
9.Oxygen sensors.
10.Throttle position sensor.
11.Manifold absolute pressure sensor
12.Mass Airflow Sensor
13.Idle air control valve

Note: If it doesn't apply disregard it-
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Saturday, March 26th, 2011 AT 11:41 PM

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