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  1. Jetta Troubleshooting
    Hi everyone. I'm New to this forum. Today I built a DIY smoke machine to find the air leak on my 2008 VW Jetta 2.0. I was successful in finding a leak but dont know what part this is or how to go about fixing it. I'm guessing it's an "o" ring or something like that under the circular cap in...
    air intake leaking lean p0171 smoked
  2. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    I have a 2.0L BBW Engine and periodically the check Engine light comes on. When I check the OBDII message (P2177) it is defined as "System too lean off idle bank 1". Has anyone experienced this error message? I suspect that it has something to do with low fuel pressure. I suppose the best thing...
    bbw fuel lean obdii
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