Please help!!! P1151 code
:help: I have a 1997 F150 4.6L engine vin code 6. I've got a P1151 code (run lean HO2 bank 2 sensor 1) I done just about everything I can think of to solve the problem. Replaced HO2 sensor, replaced plugs & wires, replaced fuel filter, cleaned MAF, cleaned injectors, cleaned EGR and it's system, PCV valve, and went through all vacuum lines (replaced two ( PCV vacuum line and throttle body to EVAC on fire wall.
I'm at a loss. If anyone can help I'd be so so unbelievably grateful!!! PLEASE ANYONE!!:bows: Oh, and checked for vacuum leaks on the intake with brake cleaner. Please understand that I didn't do all these things in this order. I started with the small stuff and worked my way into the more complicated things. |
A code P1151 may mean that one or more of the following has happened:
Electrical: Short to VPWR in the harness or HO2S Water in the harness connector Open/shorted HO2S circuit Corrosion or poor mating terminals and wiring Damaged HO2S Damaged PCM Fuel System: Excessive fuel pressure Leaking/contaminated fuel injectors Leaking fuel pressure regulator Low fuel pressure or running out of fuel Vapor recovery system Induction System: Air leaks after the MAF Vacuum Leaks PCV system: Improperly seated engine oil dipstick EGR System: Leaking gasket Stuck EGR valve Leaking diaphragm or EVR Base Engine: Oil overfill Cam Timing Cylinder compression Exhaust leaks before or near the HO2S(s) Read more at: http://www.obd-codes.com/p1151-ford Copyright OBD-Codes.com Bank 2 Sensor 1 is the front O2 on the driver's side. |
@Charles G , I often use a couple of resources for OBD-Codes as one may have some information (not necessarily different) but other clues, in addition to that mentioned above that can be helpful. Such seems to be the case here with P1152. http://www.autocodes.com/p1151_ford.html gives a pretty nice detailed description of the Monitor Test that is failing to run successfully for two drive cycles. Several things I wasn't aware of - like it seems this Monitor test failing may be a pre-cursor to a P0174 Code if the problem continues.
Good Luck |
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