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internal88, VW Mechanic
Category: VW
Satisfied Customers: 2576
Experience:  I've been working in the automotive industry for over 10 years. Diagnostic is my strength.
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Took my 2002 VW Jetta for state inspection today and it

Customer Question

Took my 2002 VW Jetta for state inspection today and it failed emissions with the P0343 code. I have already replaced the catalytic converter, put in a new starter and replaced my plugs and wires. What is this code all about and what can I do to clear it? I have been told in the past that it is just a misfire code. What does this have to do with emissions? What can be done to get it to pass emissions? Thanks.
Submitted: 12 months ago.
Category: VW
Expert:  internal88 replied 12 months ago.

Hello, I'm Brandon - VW tech.

It is not a misfire code. P0343 is indicating the camshaft sensor signal too high.

It is a cam sensor code. You will need to replace the camshaft sensor also known as G40 Sensor.

You must get the OE sensor and not the aftermarket sensor on this vehicle.

This is a common issue with the jetta.

Please rate me positive, thank you. let me know if you have further questions.