P0172 FORD - System Too Rich Bank 1 3 | Add Comment Possible causes: Faulty front heated oxygen sensor, Ignition misfiring, Faulty fuel injectors, Exhaust gas leaks, Incorrect fuel pressure, Faulty Mass Air Flow (MAF) sensor...The code is detected when, - Fuel injection system does not operate properly. - The amount of mixture ratio compensation is too large. (The mixture ratio is too rich.).
2003, 5.4, p0172 code. maf good, plugs, injectors and cop new, bank 1 oxy sensor new. rich condition bank one (pass side) only.
2003 Ford Expedition Eddie Bauer 4WD
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Maintenance & Repair
Will a complete 2003 5.4 engine change out into a 2006 5.4. Both are Expeditions
2006 Ford Expedition Eddie Bauer 4WD
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Maintenance & Repair
Hello all, I have 2003 Ford Expedition that has been giving me a hard time. The vehicle will randomly die while I am driving it. The lights on the dash go nuts, but everything else is dead. I have r...
2003 Ford Expedition XLT 4WD
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Maintenance & Repair
I have changed all 8 spark plugs, all 8 coil on plugs, and still getting the same trouble code. What else can i check? i still have a slight miss in my engine.
2002 Ford Expedition XLT 4WD
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Maintenance & Repair
My odometer said 666 and an upside down "A"? Is it throwing a code, or do I need an exorcism?
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Maintenance & Repair
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