Toyota Tundra Forums banner
long term fuel trim
1-1 of 1 Results
  1. Electrical & Computer Systems
    Hi everyone, so I have a 08 Tundra DC 5.7L and I got the dreaded P0171 and P0174 code. Researched a little and found that mine is most likely a vacuum leak because my % goes down as the load goes up (throttle) and if it were fuel related the % would go up as the load went up.I have a scanner...
1-1 of 1 Results