2000 Volkswagen Jetta diagnostic code p1128

2000 VOLKSWAGEN JETTA
Avatar
YORONGL
  • MEMBER
  • 1 POST
Engine Performance problem
2000 Volkswagen Jetta 4 cyl Two Wheel Drive Manual

our machine read that read long term fuel trim system to lean. what is the probable failure, and how do i fix that.
Apr 7, 2009 at 5:47 PM
Advertisement
Avatar
BLUELIGHTNIN6
  • CERTIFIED EXPERT
  • 16,542 POSTS
Most common culprit is a faulty oxygen sensor or clogged catalytic coverter. Have converter flow tested and also test each oxygen sensor and their wiring.




Thanks for using 2CarPros.com!
Apr 7, 2009 at 6:44 PM