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P0172 Diagnostic Trouble Code Discussion for February 2007

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
1999 Chrysler Concorde LX 2.7L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on, hard start VIN: 2C3HG46R8X
P0172: Fuel System Rich (Bank 1). ... threw muddy gravel roads beleave it has many drivers thanks in advance for any info towed in high idle and check engine light on has p0172 and 175 found several vacuum ports blown off put back on idles back down replaced...
February 01, 2007
2002 Chevrolet Trailblazer LS 4.2L Poor Idle Quality, Cuts out, Misfire VIN: 1GNDT13542
P0172: Fuel System Rich (Bank 1). The vehicle cam back 3wks later, with the type a miss. But has been running right prior to this. So I pulled the codes PO 172 which is a fuel to rick bank 1 code. PO 303 clyinder 3 misfire detected and a PO 340 code which is a camshaft positioning sensor probl...
February 02, 2007
1998 Chevrolet S10 LS 2.2L MIL Lamp on VIN: 1GCCS1941W
P0172: Fuel System Rich. Had Multiple Codes,PO172, Did Not Record Others,Figured Related To Bad Ground. Is Over Due For Inspection,Cleard Codes,Performed Drive Cycle. Code PO172 Came Back On Second Trip. No Other Codes. Truck Runs Fine But At 2500 rpm Long Term Jumps To 148. Right As ...
February 07, 2007
1999 Chrysler Concorde LX 2.7L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on, hard start VIN: 2C3HG46R8X
P0172: Fuel System Rich (Bank 1). ... threw muddy gravel roads beleave it has many drivers thanks in advance for any info towed in high idle and check engine light on has p0172 and 175 found several vacuum ports blown off put back on idles back down replaced...
February 08, 2007
1999 Mazda Protege DX 1.6L MIL Lamp on VIN: JM1BJ2220X
P0172: Adaptive Fuel Trim Too Rich (Bank 1). This vehicle has very low mileage, driven by little old lady. Visual inspection of plugs and O2's confirm rich running. There is a TSB on the MAF's on these vehicles, but production number indicates that this one is OK. Fuel pressure regulator functioning prop...
February 13, 2007
2001 Dodge Intrepid SE 2.7L Excessive Emissions, Poor Idle Quality, MIL Lamp on VIN: 2B3HD46R91
P0172: Fuel System Rich (Bank 1). This vehicle runs rough at idle. Not a complete missfire, but just not steady. Cylinders 1,3,5 hardly make a difference when disabling injectors. I'm just under the gun today for time and looking for someone to point me in the right direction if there is a com...
February 19, 2007
2000 Mazda Protege DX 1.6L Poor Fuel Economy, MIL Lamp on VIN: JM1BJ2225Y
P0172: Adaptive Fuel Trim Too Rich (Bank 1). ... engine light on and poor fuel mileage. scan for codes, p0172 bank 1 rich. checked fuel pressure, ok. checked maf ok, cleaned maf. check for vacuum leaks no leaks found. check o2 sensor operation ok. check short term trim jumping from -10 to +20. check long...
February 19, 2007
2001 Dodge Intrepid SE 2.7L Excessive Emissions, Poor Idle Quality, MIL Lamp on VIN: 2B3HD46R91
P0172: Fuel System Rich (Bank 1). This vehicle runs rough at idle. Not a complete missfire, but just not steady. Cylinders 1,3,5 hardly make a difference when disabling injectors. I'm just under the gun today for time and looking for someone to point me in the right direction if there is a com...
February 22, 2007
1998 Volkswagen Beetle 2.0L MIL Lamp on VIN: 3VWBB61C9W
P0172: bank 1 system rich. hello freinds, this car has 2 codes 1 stating fuel trim is lean and also system is rich. freeze frame data showed fault at low rpm 1800 and fuel trim was +17% checked for vacuum leaks. at the time of inspection long trim fuel is +8% and short trim varies 0-5% ...
February 22, 2007
1999 Toyota Corolla CE 1.8L MIL Lamp on VIN: 2T1BR12EXX
P0172: Fuel System Too Rich (Bank 1). Hi. I have been chasing this problem for days.First of all this car dosn't have a maf {mass air flow meeter}. The map is on the throttle body and it checks good.the o2 is switching good. the car is calif. emissions but the o2 switches like fed. toyota said the...
February 24, 2007
1999 Ford Explorer Eddie Bauer 4.0L Surge, Stall VIN: 1FMZU34E0X
Vehicle came in about a month ago with P0171 and P0174 stored lean fuel trims bank one and two. Long term fuel trims were way positive. If the throttle was cracked off idle the fuel trims would go directly to zero or a little negative. If the throttle was heal...
February 26, 2007
1999 Ford Explorer Eddie Bauer 4.0L Surge, Stall VIN: 1FMZU34E0X
Vehicle came in about a month ago with P0171 and P0174 stored lean fuel trims bank one and two. Long term fuel trims were way positive. If the throttle was cracked off idle the fuel trims would go directly to zero or a little negative. If the throttle was heal...
February 27, 2007
1998 Honda Civic HX 1.6L MIL Lamp on VIN: 1HGEJ7127W
P0172: Fuel System Too Rich. Vehicle drives fine. Intermittant MIL with Rich DTC's Please note, this vehicle uses a LAF/WideBand HO2S for sensor 1/1. The fuel trims at both idle and cruise are around .82-.86 LT/ST. HO2s 1/1 reads at around 18.5:1 AFR (lean) at idle and 2500-3000RPM. HO2s ...
February 27, 2007