Question about 1997 Volkswagen Jetta

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1997 VW 2.0 Engine Air filter / check engine light

Am driving a borrowed 97 VW Jetta with the 2.0 engine. Had a Super Walmart auto center replace the engine air filter. A day after the filter change I started getting a check engine warning light. Went back to the Walmart auto center, they erased the warning light. Next day the check engine light reappeared. Was in a tire store and mentioned the check engine light problem. One of their tire mechanics checked the air filter. I was told that there was a loose hose. The mechanic fixed the hose and then erased the check engine warning light. The check engine warning light reappeared the next day. I think that I need to find out the correct way to change the air filter and start over. perhaps there is either something loose or not correctly installed. Earlier today I did find the rear clip to the air filter upper cover was not fastened. That clip is fastened now, but the warning light is still illuminated. Any suggestions would be appreciated.

Tom Arnold
Sparks NV

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Sounds like it could be a mass airflow sensor failure. Take your car do your reputable mechanic and have them scan your computer to find out what the error code is, and then go from there. If it says that the mass airflow sensor is offline, I would look to make sure that the connector is properly secured on the air intake hose.

Posted on Apr 28, 2010

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