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  1. Jetta Troubleshooting
    I did some educated trial and error part replacements before taking my car into my local VW dealership for diagnosis. They charged me $100 to tell me my MAF and engine coolant temp (ECT) sensors were the issue. I replaced both parts (pretty tough to screw those replacements up too) and...
  2. POWERTRAIN MODS - ENGINE / TRANS / TURBO / EXHAUST
    Nothing is more frustrating than down shifting to 5th in an effort to pass someone on a two lane road and having an O2 problem that disables you from passing. UGH! My 2003 GLI is running really weird. I can tell it's the fuel/ratio so I had the codes checked and it came up with P00118, P00300...
  3. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    i have an mk4 with a 2.0 aeg and for the last few months the coolant temp gauge hasnt been working right...it fluxuates all around from the cold position to 190 and back to cold....ocassionally it wont want to start and when it finally does it smells heavily of gas and other times ill be driving...
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