2001 Jetta (1.8T) - check enginer light & vibration

2001 VOLKSWAGEN JETTA
97,000 MILES • 4 CYL • 2WD • AUTOMATIC
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KARTHIKGK
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I drive a 2001 Jetta (1.8T; 97,000 Miles) and got my oil changed at a local Jiffy Lube yesterday.

This evening, the check engine light started flashing and the manual says that this could be problem with the catalytic converter. I see additional symptoms:

1) Power has come down
2) There is lot of vibration inside the car, especially when stopped at a traffic light (even my 7-yr daughter felt the vibration)

Is this a problem with the catalytic converter? Or could it be something else? Approximately, how many $$ would I have to spend?

Any pointers would be helpful

Thanks,
Karthik
Mar 11, 2011 at 2:50 AM
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RASMATAZ
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Have the computer scanned for code/s-you have a problem within the engine management system that caused the CEL to turn on-This is your starting point of diagnosis,finding out what's going on.
Mar 11, 2011 at 2:55 AM
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EXOVCDS
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The engine is misfiring because of a faulty ignition coil.

Thomas
Mar 16, 2012 at 4:21 AM
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BRENT0NFIRE
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"There is lot of vibration inside the car, especially when stopped at a traffic light"
Vacuum leak! Id inspect the check valve first. If its not that, use a pair of smooth pliers and pinch the vacuum lines until you pinch the one that smooths out the engine.
Mar 20, 2012 at 2:00 PM
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EXOVCDS
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What's a check valve?
Mar 21, 2012 at 2:36 AM
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EXOVCDS
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Brent0nFire, sorry... I had a blond moment. One-way check valve is what
I call them, sorry.

Still think it's a coil issue though. The one-way check valves usually
just cause a fuel trim code (that I have run into).

Thomas
Mar 28, 2012 at 9:33 PM
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