Question about 1998 Volkswagen Jetta

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Maybe catylitic converter?

Hello, my jetta is running poorly. It starts fine but soon as one steps on the gas it bogs down until it stalls out. It is undriveable as is. when this occurs i noticed that it smells funny like sulphur.

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Had the same problem with girlfriends 98 Jetta GL. Auto parts store told me OBD codes report multiple mis-fires so replaced plug wires, coil, rotor cap, plugs, etc. with no change in performance. Searched INET and other suggested throttle body or bang on CC and listen for rattles. Sure enough CC was melted down hunk of metal in there. Replaced it cheap $150 off Ebay and runs like a champ

Posted on Nov 19, 2008

Throdle body sensor i have the same prob

Posted on Jul 06, 2008

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Hi.
A sulphurous smell can be caused by an over-rich mixture or poor combustion sending unburned fuel to the catalytic converter.

I would suggest getting a fault-code readout which might start to point you towards the cause of the problem. Sorry I cannot be more specific, but all you really need to know is that you are requiring the services of a VW engineer !
Good Luck, D.

Posted on Jul 01, 2008

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Posted on Jan 02, 2017

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