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  1. Jetta Troubleshooting
    I own a 2004 Jetta GLS 1.8T and I installed a new Raceland exhaust that bypasses the catalytic converter. the car runs great and I want to keep that exhaust on but the 02 sensor makes the check engine light remain on because of the new exhaust. My inspection is expired and I need to get the car...
  2. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    ok before ppl fly off the handle about how bad removing a cat is....i have to remove it per SCCA rules....this is a race only jetta mk4 Now back to my question.....when i remove the cat and the downstream 02 sensor i know im going to throw a CEL. Therefore i was wondering if anyone knew that...
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