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P0172 Diagnostic Trouble Code Discussion for March 2009

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
2004 Ford Expedition XLT 5.4L Hesitation, Cuts out, Stall, MIL Lamp on VIN: 1FMPU16L44
P0172: system rich bank 1. vehicle came in w/acceleration problem at freeway speeds no power and vehilce would stall at stops, we checked fuel pressure and pressure is too high 100psi specs. are 55psi. we replaced fuel pressure regulator, fuel filter and fuel pump assembly and made no d...
March 12, 2009
1999 Toyota RAV4 2.0L MIL Lamp on VIN: JT3HP10VXX
P0172: Fuel System Too Rich (Bank 1). ... a clutch in it about 3 months ago. Last week vehicle came in with check engine light on. P0172 code and fuel trims were -20 to -39. We looked at the sensor readings and B1S1 seemed stuck on a fixed value. We replaced the sensor, cleared codes and its back!...
March 13, 2009
2004 Ford F-150 FX4 5.4L Poor Fuel Economy, MIL Lamp on VIN: 1FTPW145X4
P0172: System too rich. ... low on top end power and runs rich. Upon checking for codes I found a P0172 and P0175, the customer replaced MAF with used and also a remanufactured one. Checked data and found MAF off. Baro was 23" when it's supposed ...
March 23, 2009
2004 Hyundai Santa Fe 2.4L Poor Idle Quality, Hesitation, Surge, MIL Lamp on VIN: KM8SB12B34
P0172: Fuel System Too Rich (Bank 1). Vehicle has been in many times for same problem, Have replaced o2 sensors, throttle body, cats, crank and cam sensors, intake gaskets, egr, purge solenoid, fuel pump and regulator, fuel injectors, knock sensor. Have involved Hyundai tech assistance all along t...
March 23, 2009
2004 Hyundai Santa Fe 2.4L Poor Idle Quality, Hesitation, Surge, MIL Lamp on VIN: KM8SB12B34
P0172: Fuel System Too Rich (Bank 1). Vehicle has been in many times for same problem, Have replaced o2 sensors, throttle body, cats, crank and cam sensors, intake gaskets, egr, purge solenoid, fuel pump and regulator, fuel injectors, knock sensor. Have involved Hyundai tech assistance all along t...
March 24, 2009
2000 Chrysler LHS 3.5L MIL Lamp on VIN: 2C3HC56G7Y
P0172: Fuel System Rich (Bank 1). Hello everyone, this is my headache. Customer came in with a LHS 3.5 litre with a knocking noise. He thought it was the flywheel but ended up needing an engine. He could not afford a new motor, so I got an engine from the junkyard. The motor I installed was a ...
March 29, 2009
2004 Ford Expedition XLT 5.4L Hesitation, Cuts out, Stall, MIL Lamp on VIN: 1FMPU16L44
P0172: system rich bank 1. vehicle came in w/acceleration problem at freeway speeds no power and vehilce would stall at stops, we checked fuel pressure and pressure is too high 100psi specs. are 55psi. we replaced fuel pressure regulator, fuel filter and fuel pump assembly and made no d...
March 12, 2009
1999 Toyota RAV4 2.0L MIL Lamp on VIN: JT3HP10VXX
P0172: Fuel System Too Rich (Bank 1). ... a clutch in it about 3 months ago. Last week vehicle came in with check engine light on. P0172 code and fuel trims were -20 to -39. We looked at the sensor readings and B1S1 seemed stuck on a fixed value. We replaced the sensor, cleared codes and its back!...
March 13, 2009
2004 Ford F-150 FX4 5.4L Poor Fuel Economy, MIL Lamp on VIN: 1FTPW145X4
P0172: System too rich. ... low on top end power and runs rich. Upon checking for codes I found a P0172 and P0175, the customer replaced MAF with used and also a remanufactured one. Checked data and found MAF off. Baro was 23" when it's supposed ...
March 23, 2009
2004 Hyundai Santa Fe 2.4L Poor Idle Quality, Hesitation, Surge, MIL Lamp on VIN: KM8SB12B34
P0172: Fuel System Too Rich (Bank 1). Vehicle has been in many times for same problem, Have replaced o2 sensors, throttle body, cats, crank and cam sensors, intake gaskets, egr, purge solenoid, fuel pump and regulator, fuel injectors, knock sensor. Have involved Hyundai tech assistance all along t...
March 23, 2009
2004 Hyundai Santa Fe 2.4L Poor Idle Quality, Hesitation, Surge, MIL Lamp on VIN: KM8SB12B34
P0172: Fuel System Too Rich (Bank 1). Vehicle has been in many times for same problem, Have replaced o2 sensors, throttle body, cats, crank and cam sensors, intake gaskets, egr, purge solenoid, fuel pump and regulator, fuel injectors, knock sensor. Have involved Hyundai tech assistance all along t...
March 24, 2009
2000 Chrysler LHS 3.5L MIL Lamp on VIN: 2C3HC56G7Y
P0172: Fuel System Rich (Bank 1). Hello everyone, this is my headache. Customer came in with a LHS 3.5 litre with a knocking noise. He thought it was the flywheel but ended up needing an engine. He could not afford a new motor, so I got an engine from the junkyard. The motor I installed was a ...
March 29, 2009