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5 votes

1998 V6 Mustang -20+ LTFT on both banks

Cleaning the MAF won't help here because the fuel trims are negative. A dirty MAF would typically under-read mass air flow and subsequently force a positive fuel trim correction. A few possibilities: ...
Zaid's user avatar
  • 39.2k
2 votes

How to Fix Check Engine Light (OBDII code: P0172)

I see that this was asked a month ago and got no answers, but on the off chance the poster still needs help or somebody else comes across this, I'll do my best to answer. If you have a bank that is ...
nstenz's user avatar
  • 136
1 vote

P0172 System Too Rich, while fuel consumption is too low

The reason was a leaky nozzle. It went well after changing the nozzle on the misfiring cylinder. I think that the fuel enhance actually worsened or caused this situation. I used it because I drove ...
Aus's user avatar
  • 276

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