Phreaq
Member
- Joined
- December 19, 2007
- Messages
- 25
- Reaction score
- 2
- City, State
- CA
- Year, Model & Trim Level
- 1992 XLT A/T 4x4
2001 Explorer Sport-Trac
4.0 vin:E Job1(built 01/00)
P0175 set first then P0172 (Bank 2 fuel system rich, Bank 1 fuel system rich)
_________________
Freeze frame data
code set p0175
ECT 194°F
STFTB1 -4.7%
LTFTB1 -24.2%
STFTB2 -9.4%
LTFTB2 -23.4%
_________________
KOEO (key on engine off) fuel pump jumped at relay to stay on.
Pressure 62psi (spec 55-65psi)
cleared codes
cleaned MAF sensor
test drove
Data at idle
STFTB1 -1.6~3.1%
LTFTB1 -12.5%
STFTB2 -1.6~3.1%
LTFTB2 -12.5%
MAF lb/min 0.530~0.552
TP 19.6%
Data at 2500rpm
STFTB1 -6.3~3.9%
LTFTB1 -14.1%
STFTB2 -4.7~5.5%
LTFTB2 -14.8%
MAF lb/min 1.816~1.872
TP 24.3%
Are these fuel trims ok?
I will drive it again, I'm hoping the codes do not come back.
If you have read any of my posts about having 70psi, I have found that gauge to be inaccurate.
4.0 vin:E Job1(built 01/00)
P0175 set first then P0172 (Bank 2 fuel system rich, Bank 1 fuel system rich)
_________________
Freeze frame data
code set p0175
ECT 194°F
STFTB1 -4.7%
LTFTB1 -24.2%
STFTB2 -9.4%
LTFTB2 -23.4%
_________________
KOEO (key on engine off) fuel pump jumped at relay to stay on.
Pressure 62psi (spec 55-65psi)
cleared codes
cleaned MAF sensor
test drove
Data at idle
STFTB1 -1.6~3.1%
LTFTB1 -12.5%
STFTB2 -1.6~3.1%
LTFTB2 -12.5%
MAF lb/min 0.530~0.552
TP 19.6%
Data at 2500rpm
STFTB1 -6.3~3.9%
LTFTB1 -14.1%
STFTB2 -4.7~5.5%
LTFTB2 -14.8%
MAF lb/min 1.816~1.872
TP 24.3%
Are these fuel trims ok?
I will drive it again, I'm hoping the codes do not come back.
If you have read any of my posts about having 70psi, I have found that gauge to be inaccurate.