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International Automotive Technicians Network
2003 Volkswagen Jetta GL 1.8L MIL Lamp on
Posted to European Driveability on 1/28/2011 10 Replies

Hi could use some help from you vw techs this car came in with the codes listed above normally i would think mass air flow sensor but we recently replaced. The readings are 30% load at idle and up to 140% under full load. I have smoke tested the intake for lea...

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  Related Documents & Media  2003 Volkswagen Jetta GL

 
Message Closed w/FIX

car Vehicle Data

2003 Volkswagen Jetta GL

VIN WVWSE61J73
Engine1.8 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursCold, Intermittently

Trouble Codes

9303
P0172Fuel System Too Rich (Bank 1)
P0300Multiple Misfire Detected
P0302Cylinder 2 Misfire Detected
P1127Long Term Fuel Trim Multiplier System Too Rich
P1137Heated Oxygen Sensor (Bank 1 Sensor 2) Low Voltage In Power Enrichment
Message Closed w/FIX

car Vehicle Data

2003 Volkswagen Jetta GL

VIN WVWSE61J73
Engine1.8 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursCold, Intermittently

Trouble Codes

9303
P0172Fuel System Too Rich (Bank 1)
P0300Multiple Misfire Detected
P0302Cylinder 2 Misfire Detected
P1127Long Term Fuel Trim Multiplier System Too Rich
P1137Heated Oxygen Sensor (Bank 1 Sensor 2) Low Voltage In Power Enrichment