1998 Ford Mustang engine check light

JULES65

MEMBER
1998 FORD MUSTANG
6 CYL
2WD
AUTOMATIC
60,000 MILES

Hopefully you can shed some light on this for me,

Troubleshooting P1151 oem brand 98 mustang.

Engine light came on so I took it to Autozone. Could be one of several things;

Definition-bblack of 02 switches-bank 2 sensor 1
Explanation bbecm could not adjust fuel trim because of a lean or bbrich condition.

Probable causes:
bb1-fuel pressure high or low
bb2-MAF sensor dirty/defective
bb3-vacuum leak on engine
bb4-leaking fuel injector or fuel pressure bbregulator

I hope that you can help thanks

1 Reply

BMRFIXIT

MECHANIC
19,053 POSTS

DTCs P1131 and P1151 indicate air/fuel ratio is correcting rich for an overly lean condition. DTCs P1132 and P1152 indicate air/fuel ratio is correcting lean for an overly rich condition. DTCs P1130 and P1150 indicate fuel system has reached maximum compensation and HO2S is not switching at the adaptive limits. Possible causes are:
Fuel system malfunction.
EGR system malfunction.
Air intake or vacuum system leak.
Engine oil level too high.
Incorrect cam timing.
Restricted air cleaner.
Faulty PCV system.
Excessive internal engine wear.
Inspect engine for obvious defects in specified systems. Repair as necessary