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Old 11-15-2006, 06:52 PM   #1
jgentil
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2001 Volkswagen GTI- CEL PO420

GTI has a miss or hesitation when pressing throttle in netural or under load. Ckeck engine light reads a PO420. Occurs hot or cold. Vehicle has 70k miles and is 6 cylinder. Any suggestions? Spark plugs, coil pack, air filter, TB, catalytic?
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Old 11-16-2006, 04:28 AM   #2
yogegoy
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Re: 2001 Volkswagen GTI- CEL PO420

Not sure about the DTC but seems you have a bad Mass Airflow Sensor.
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