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P0172 Diagnostic Trouble Code Discussion for April 2010

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
2007 Chevrolet Uplander LS 3.9L MIL Lamp on VIN: 1GNDV23W77
P0172: Fuel System Rich. This Uplander has a P0172 System Rich code. No apparent running issues. Fuel trims are as follows ST = -4 to 4, LT = -17 to -23. Front O2 readings are good. Rear readings are anywhere from 600 to 800 mV. Fuel compostion is lo. Unfortunately, my info on this ne...
April 01, 2010
2003 Lincoln LS 3.9L MIL Lamp on VIN: 1LNHM87A03
P0172: system rich bank 1. after clearing ml lamp, light will come on after about 15 miles of driving runs and drive ok
April 01, 2010
2005 Volvo S40 i 2.4L MIL Lamp on VIN: YV1MS38225
P0172: system to rich bank 1. vehicle is back with new codes po089, and p0174. ck fuel rail pressure at 80 psi. seen some notes on iatn that fuel pressure is supposed to be 55 psi. no diag. troubleshooting charts for p0089 in mitchell and no fuel pressure specs. talked to a parts guy at vo...
April 05, 2010
2005 Kia Optima LX 2.4L MIL Lamp on, P0172 VIN: KNAGD12695
P0172: Fuel System Too Rich (Bank 1). ... running. I found a dead mas sensor previous shop warrenteed the sensor. I replaced the spark plugs owner said they've never been changed. Then changed the oil for gas dillution. I test drove the car over 2 days then P0172 came on. I checked compression 20...
April 06, 2010
2007 Chevrolet Uplander LS 3.9L MIL Lamp on VIN: IGNDV33W57
P0172: Fuel System Rich. ... kicking my butt.Car came in with CEL onand P0172 rich bank.LT trim -5to-25 ST trim -5to-15.Engine runs and drives ok no any other codes.MAP and MAF reads correct.Composite fuel reset,clean the injectors,plugs ,wires.O2 snsr, and fuel pump has been replaced...
April 08, 2010
2007 Chevrolet Uplander LS 3.9L MIL Lamp on VIN: IGNDV33W57
P0172: Fuel System Rich. ... kicking my butt.Car came in with CEL onand P0172 rich bank.LT trim -5to-25 ST trim -5to-15.Engine runs and drives ok no any other codes.MAP and MAF reads correct.Composite fuel reset,clean the injectors,plugs ,wires.O2 snsr, and fuel pump has been replaced...
April 09, 2010
2006 Acura MDX 3.5L MIL Lamp on VIN: 2HNYD18906
P0172: Fuel System Too Lean (Bank 1). ... present, P0175, P0172 (rich running bank 1 & 2). Scan data confirmed readings on fuel trims. Checked for vacuum leaks to find none. Performed fuel injection service and pcm relearn from related bulletin. All other known readings in specs. I haven't see...
April 12, 2010
2005 Ford Ranger FX4 4.0L MIL Lamp on VIN: 1FTZR45E75
P0172: bank 1 rich. Customer buys this Ranger with the engine light on. PO172, PO175 both banks rich. No driveability concerns, starts, runs fine, no black smoke, no hard start. LTFT #s -25 both banks, if I clear the KAM by disconnecting battery, on restart LTFT will be close to ...
April 14, 2010
1998 Pontiac Grand Prix SE 3.8L Poor Idle Quality, Surge, Stall VIN: 1G2WJ52K1W
P0172: Fuel System Rich (Bank 1). ... acceleration miss. P0440 needs a new filler neck, not realted (IMO) to present problem. When engine is at operating temperature, will stall coming to a stop at 30 km/h or so. At a steady idle,engine running fine, NO MIL (codes cleared),rev engine up once o...
April 14, 2010
2006 Acura MDX 3.5L MIL Lamp on VIN: 2HNYD18906
P0172: Fuel System Too Lean (Bank 1). ... present, P0175, P0172 (rich running bank 1 & 2). Scan data confirmed readings on fuel trims. Checked for vacuum leaks to find none. Performed fuel injection service and pcm relearn from related bulletin. All other known readings in specs. I haven't see...
April 15, 2010
2003 Ford Taurus SE 3.0L Hesitation VIN: 1FAFP55S83
P0172: too rich bank 1. owner says car hesitates i hooked up scanner found codes for running rich and -18 long term fuel trim both banks all the other reading within specks can you help me thanks
April 20, 2010
2006 GMC Envoy SLE 4.2L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1GKET16S46
P0172: Fuel System Rich (Bank 1). Good morning, I have an '06 Envoy here that when cold intermittently it will stall, no power, backfire in intake, misfire, MIL illuminated. Here is the story, the MIL has been illuminated for over a year, she has had the vehicle to several places who accordin...
April 26, 2010
2001 Honda Passport LX 3.2L Poor Idle Quality, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: 456CK58W11
P0172: Fuel System Too Rich (Bank 1). ... with lean rich codes.p0172, p0174 p0175. i spayed around intake and i found a leaky intake and replce gaskets along with spark plugs. Then it was sent out, but two days later the car came back with the same problem flashing ...
April 27, 2010
2003 Ford E-350 5.4L MIL Lamp on, runs rich bank 1@2 VIN: 1FBSS31L33
P0172: b1 rich. This van runs perfectly no loss of power idles smooth no misfires. Power balance is o.k. I have inspected the intake system to look for false air and have located nothing. o2 sensors work perfectly. The customer has owned this van for 3 months and says the che...
April 28, 2010
2001 Honda Passport LX 3.2L Poor Idle Quality, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: 456CK58W11
P0172: Fuel System Too Rich (Bank 1). ... with lean rich codes.p0172, p0174 p0175. i spayed around intake and i found a leaky intake and replce gaskets along with spark plugs. Then it was sent out, but two days later the car came back with the same problem flashing ...
April 28, 2010
2001 Ford Expedition XLT 5.4L Poor Fuel Economy VIN: 1FMFU18L03
P0172: lean code. fuel trims at idle on bank 1 -21 on bank 2 +21 when driving fuel trims go normal. Its differant seeing fuel trims opposite on the banks. Short term fuel trims are always normal, so long term is adjusting the problem. both 02 sensors are switching good at idle ...
April 30, 2010