xz96
Active Member
- Joined
- June 7, 2014
- Messages
- 93
- Reaction score
- 0
- Year, Model & Trim Level
- 1999 explorer sports 2wd
I have two codes p0171 and p0174,
i had fuel pump replaced 2weeks ago, truck runs fine now.
fuel trim at idle :
STFT: -3 to 2
LTFT: 7 to 9
sometimes LTFT will reach 13
I ll go clean MAF sensor tomorrow, but can i just ignore these two codes?
will these codes reset by themselves? Or I have to manually reset them using obd2 scanner after cleanning MAF sensor..
I ll check vacuum leak tmr as well
i had fuel pump replaced 2weeks ago, truck runs fine now.
fuel trim at idle :
STFT: -3 to 2
LTFT: 7 to 9
sometimes LTFT will reach 13
I ll go clean MAF sensor tomorrow, but can i just ignore these two codes?
will these codes reset by themselves? Or I have to manually reset them using obd2 scanner after cleanning MAF sensor..
I ll check vacuum leak tmr as well
