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  1. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    These codes were found with VAG Emulator: 16555 - Fuel Trim; Bank1 - PO171 System Too Lean 16891 - Idle Control System RPM - P0507 - 35-10 - Higher Than Expected. - Intermittent Readiness: 0000 1000 Then car idles higher then drops to normal RPM when driving, It usually stays around 2-3k rpm...
  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...
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