Engine Idle/Stalling

Tiny
FLAMONTESS
  • MEMBER
  • 2001 CHEVROLET MONTE CARLO
  • 6 CYL
  • FWD
  • AUTOMATIC
My '01 Monte Carlo SS is giving me engine idle/stalling/throttle hesitation issues when the engine is cold. Once I start driving and it warms up, the problem disappears. I just replaced the MAP sensor, Idle Control sensor, Mass Airflow Sensor, and another sensor that has a hose connecting to the EGR valve. What else can it be?
Wednesday, January 5th, 2011 AT 11:29 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard it and keep testing.
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Sunday, March 27th, 2011 AT 12:10 AM

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