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P0172 Diagnostic Trouble Code Discussion for January 2008

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
2005 Acura TL 3.2L MIL Lamp on VIN: 19UUA6625A
P0172: Fuel System Too Rich (Bank 1). check engine light on with the 2 rich codes.checked for vacuum leaks but none found.idles rough so i cleaned t-body housing and tried the idle relearn procedure.cleared codes but still idles rough and mil back on.please help ,thanks in advance.
January 06, 2008
2002 Volkswagen Passat GLX 4 Motion 2.8L Excessive Emissions, MIL Lamp on VIN: WVWYH63B22
P0172: Fuel trim bank 1 system to rich. ... light on and 2 codes, p0172 and p0175. System rich. Traced problem to fuel pressure reading at 100 psi. Replaced the fuel pressure regulator. no improvement. Removed return line and ran fuel into a can. Pressure dropped to normal. Looked for damage to retu...
January 07, 2008
2005 Dodge Ram 2500 Truck SLT 5.7L MIL Lamp on VIN: 3D7KS28D35
P0172: Fuel System Rich (Bank 1). ... pull code p0016 cam crank timing issue scoped both appeared ok noticed engine appears to have been out ( harness not routed correct not bolted in place bracket caught between block and trans oil pan damaged ect...) looked at cam crank difference on drb, sh...
January 12, 2008
1997 Chevrolet K1500 4.3L Hesitation, Misfire VIN: 1GCER14W7V
P0172: Fuel Trim System Rich (Bank 1). ... Hesitation on freeway speeds only. The scanner pulled codes #P0172, Po175, and P0300. Most cylinders are randomly misfiring. Tune up was done around 3 months ago.Has a new catalytic converter and two (2) O2 sensors. The co...
January 15, 2008
2000 Mazda Protege DX 1.6L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: JM1BJ2221Y
P0172: Adaptive Fuel Trim Too Rich (Bank 1). ... months ago for rough idle. symptom was it would idle fine then instantly start running rough (200 rpm drop or so occasional random misfire) then gradually return to normal idle or rev the engine up to clear it out, drives down the road fine. looking at the...
January 15, 2008
1999 Saab 9-5 2.3L Hesitation, MIL Lamp on VIN: YS3ED48E2X
P0172: fuel /air mixture too rich LTFT at minimum. The LTFT will go right down to -25% on a 5 mile highway drive. I have changed the MAF and replaced many vac hoses, smoked the turbo ducting system (from MAF to throttle body) and there is no leak. All pressure sensors read within 1.8 kPa w/ KOEOff (within spec...
January 23, 2008
2001 Volkswagen Jetta Wolfsburg Edition 1.8L Excessive Emissions, MIL Lamp on VIN: 3VWPD69M71
P0172: too rich. ... time now and while it has been a very reliable and good performer it has kept us profitable with various emissions and oil leak problems over the years. Car showed up with a a code P0172 and very miserable short term fuel trims (-20) with corresponding gas...
January 24, 2008
2000 Mazda Protege DX 1.6L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: JM1BJ2221Y
P0172: Adaptive Fuel Trim Too Rich (Bank 1). ... months ago for rough idle. symptom was it would idle fine then instantly start running rough (200 rpm drop or so occasional random misfire) then gradually return to normal idle or rev the engine up to clear it out, drives down the road fine. looking at the...
January 30, 2008
2005 Acura TL 3.2L MIL Lamp on VIN: 19UUA6625A
P0172: Fuel System Too Rich (Bank 1). check engine light on with the 2 rich codes.checked for vacuum leaks but none found.idles rough so i cleaned t-body housing and tried the idle relearn procedure.cleared codes but still idles rough and mil back on.please help ,thanks in advance.
January 06, 2008
2002 Volkswagen Passat GLX 4 Motion 2.8L Excessive Emissions, MIL Lamp on VIN: WVWYH63B22
P0172: Fuel trim bank 1 system to rich. ... light on and 2 codes, p0172 and p0175. System rich. Traced problem to fuel pressure reading at 100 psi. Replaced the fuel pressure regulator. no improvement. Removed return line and ran fuel into a can. Pressure dropped to normal. Looked for damage to retu...
January 07, 2008
2005 Dodge Ram 2500 Truck SLT 5.7L MIL Lamp on VIN: 3D7KS28D35
P0172: Fuel System Rich (Bank 1). ... pull code p0016 cam crank timing issue scoped both appeared ok noticed engine appears to have been out ( harness not routed correct not bolted in place bracket caught between block and trans oil pan damaged ect...) looked at cam crank difference on drb, sh...
January 12, 2008
1997 Chevrolet K1500 4.3L Hesitation, Misfire VIN: 1GCER14W7V
P0172: Fuel Trim System Rich (Bank 1). ... Hesitation on freeway speeds only. The scanner pulled codes #P0172, Po175, and P0300. Most cylinders are randomly misfiring. Tune up was done around 3 months ago.Has a new catalytic converter and two (2) O2 sensors. The co...
January 15, 2008
2000 Mazda Protege DX 1.6L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: JM1BJ2221Y
P0172: Adaptive Fuel Trim Too Rich (Bank 1). ... months ago for rough idle. symptom was it would idle fine then instantly start running rough (200 rpm drop or so occasional random misfire) then gradually return to normal idle or rev the engine up to clear it out, drives down the road fine. looking at the...
January 15, 2008
1999 Saab 9-5 2.3L Hesitation, MIL Lamp on VIN: YS3ED48E2X
P0172: fuel /air mixture too rich LTFT at minimum. The LTFT will go right down to -25% on a 5 mile highway drive. I have changed the MAF and replaced many vac hoses, smoked the turbo ducting system (from MAF to throttle body) and there is no leak. All pressure sensors read within 1.8 kPa w/ KOEOff (within spec...
January 23, 2008
2001 Volkswagen Jetta Wolfsburg Edition 1.8L Excessive Emissions, MIL Lamp on VIN: 3VWPD69M71
P0172: too rich. ... time now and while it has been a very reliable and good performer it has kept us profitable with various emissions and oil leak problems over the years. Car showed up with a a code P0172 and very miserable short term fuel trims (-20) with corresponding gas...
January 24, 2008
2000 Mazda Protege DX 1.6L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: JM1BJ2221Y
P0172: Adaptive Fuel Trim Too Rich (Bank 1). ... months ago for rough idle. symptom was it would idle fine then instantly start running rough (200 rpm drop or so occasional random misfire) then gradually return to normal idle or rev the engine up to clear it out, drives down the road fine. looking at the...
January 30, 2008