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2003 Volkswagen Passat GLS 1.8L Poor Idle Quality, MIL Lamp on
Posted to European Driveability on 4/19/2010 15 Replies

repaired several vacuum leaks, replaced 3 coils and all spark plugs, customer always runs 87 octane when premium is called for we alwayws fill with premium and it ran well. now the rough idle will not go away in closed loop. runs well down the road with plenty...

15 Replies Received (View Replies)

  Related Documents & Media  2003 Volkswagen Passat GLS

 
Message Closed w/FIX

car Vehicle Data

2003 Volkswagen Passat GLS

VIN WVWVD63B83
Engine1.8 L / 4 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection / sefi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursHot, Idle

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0301Cylinder 1 Misfire Detected
P0302Cylinder 2 Misfire Detected
P0303Cylinder 3 Misfire Detected
P0304Cylinder 4 Misfire Detected
Message Closed w/FIX

car Vehicle Data

2003 Volkswagen Passat GLS

VIN WVWVD63B83
Engine1.8 L / 4 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection / sefi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursHot, Idle

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0301Cylinder 1 Misfire Detected
P0302Cylinder 2 Misfire Detected
P0303Cylinder 3 Misfire Detected
P0304Cylinder 4 Misfire Detected