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2004 Chevrolet Monte Carlo SS 3.8L Poor Idle Quality, Surge, Stall
Posted to GM Driveability on 10/9/2015 18 Replies

Vehicle came in code p0300 p0171. Has rough idle and stalls after hot soak. Checked for vacuum leaks had vacuum leak at intake port in hose going to map and fuel pressure regulator. repaired hose no change. Checked fuel pressure while running is 45 psi. replac...

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  Related Documents & Media  2004 Chevrolet Monte Carlo SS

 
Message Closed w/FIX

car Vehicle Data

2004 Chevrolet Monte Carlo SS

VIN 2G1WZ12144
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, Stall
OccursAfter a Hot Soak

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2004 Chevrolet Monte Carlo SS

VIN 2G1WZ12144
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, Stall
OccursAfter a Hot Soak

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0300Multiple Misfire Detected