Join Now
International Automotive Technicians Network

P0172 Diagnostic Trouble Code Discussion for June 2006

Fuel System Rich (Bank 1)


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0172
Help Request Posted
1997 Chevrolet Cavalier LS 2.2L Hesitation, Surge, Stall, MIL Lamp on VIN: 4G1JF3244V
P0172: Fuel System Rich (Bank 1). this vehicle at idle and light excel with foot slightly on gas pedal will exhibit a lean condition on the scan tool. leading to either low power/rough running or actual dying. during this lean phase you can rapidly depress accelerator pedal and drive through l...
June 02, 2006
1996 Plymouth Neon High Line 2.0L MIL Lamp on VIN: 1P3ES47CXT
P0172: Fuel System Rich (Bank 1). ... neon that is setting a p0172 code, rich bank 1. The fuel pressure is 51psi,injector pulse width at idle is 1.92, o2's front and rear are switching good, map sensor reading at idle is 1.5-1.6,engine has no blowby, engine running smooth, checked egr system a...
June 06, 2006
2004 Ford F-150 Lariat 5.4L Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp on VIN: 1FTPX12594
P0172: bank1 rich. HELP!!! Here is an ahead of time thank you for any help anyone can offer. This pu came in from multiple other shop including the dealership ,with mil on and cyl 1 missfire 1 bank lean and 1 bank rich codes, scan data shows exactly that. taking a fuel sample an...
June 07, 2006
1998 Honda Civic EX 1.6L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: 2HGEJ8542W
P0172: Fuel System Too Rich. Hello to all, freeze frame shows long and short trims maxed out in the neg.light engine load on accell. map 14hg, baro 2.6v. I'ved cked tp-map-fuel presure and leak down-pulled the injector and cked for leaking no leaker and good pattern. purge sol. good- fuel...
June 08, 2006
1998 Honda Civic EX 1.6L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: 2HGEJ8542W
P0172: Fuel System Too Rich. Hello to all, freeze frame shows long and short trims maxed out in the neg.light engine load on accell. map 14hg, baro 2.6v. I'ved cked tp-map-fuel presure and leak down-pulled the injector and cked for leaking no leaker and good pattern. purge sol. good- fuel...
June 09, 2006
1997 Acura CL 2.2L Hesitation, MIL Lamp on VIN: 19UYA1154V
P0172: Fuel System Too Rich (Bank 1). ... sometimes hesitates on light accel/ has a code p0172 fuel system rich We first adjusted valves and brought tune up to date and recheck symptom better but still there.Ruled out egr system,changed the fuel,replaced oxygen sensor, cleaned and inspected inject...
June 15, 2006
1997 Chevrolet Cavalier LS 2.2L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1G1JF5243V
P0172: Fuel System Rich (Bank 1). This car is over fueling. It is loading up so bad that it will miss at idle. The o-2 stays at .9 most of the time untill the short term get to about -34%. Then it tries to switch rich- lean. This car has no test port for fuel presure test. I thought it was lea...
June 21, 2006
1997 Chevrolet Cavalier LS 2.2L Hesitation, Surge, Stall, MIL Lamp on VIN: 4G1JF3244V
P0172: Fuel System Rich (Bank 1). this vehicle at idle and light excel with foot slightly on gas pedal will exhibit a lean condition on the scan tool. leading to either low power/rough running or actual dying. during this lean phase you can rapidly depress accelerator pedal and drive through l...
June 02, 2006
1996 Plymouth Neon High Line 2.0L MIL Lamp on VIN: 1P3ES47CXT
P0172: Fuel System Rich (Bank 1). ... neon that is setting a p0172 code, rich bank 1. The fuel pressure is 51psi,injector pulse width at idle is 1.92, o2's front and rear are switching good, map sensor reading at idle is 1.5-1.6,engine has no blowby, engine running smooth, checked egr system a...
June 06, 2006
2004 Ford F-150 Lariat 5.4L Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp on VIN: 1FTPX12594
P0172: bank1 rich. HELP!!! Here is an ahead of time thank you for any help anyone can offer. This pu came in from multiple other shop including the dealership ,with mil on and cyl 1 missfire 1 bank lean and 1 bank rich codes, scan data shows exactly that. taking a fuel sample an...
June 07, 2006
1998 Honda Civic EX 1.6L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: 2HGEJ8542W
P0172: Fuel System Too Rich. Hello to all, freeze frame shows long and short trims maxed out in the neg.light engine load on accell. map 14hg, baro 2.6v. I'ved cked tp-map-fuel presure and leak down-pulled the injector and cked for leaking no leaker and good pattern. purge sol. good- fuel...
June 08, 2006
1998 Honda Civic EX 1.6L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: 2HGEJ8542W
P0172: Fuel System Too Rich. Hello to all, freeze frame shows long and short trims maxed out in the neg.light engine load on accell. map 14hg, baro 2.6v. I'ved cked tp-map-fuel presure and leak down-pulled the injector and cked for leaking no leaker and good pattern. purge sol. good- fuel...
June 09, 2006
1997 Acura CL 2.2L Hesitation, MIL Lamp on VIN: 19UYA1154V
P0172: Fuel System Too Rich (Bank 1). ... sometimes hesitates on light accel/ has a code p0172 fuel system rich We first adjusted valves and brought tune up to date and recheck symptom better but still there.Ruled out egr system,changed the fuel,replaced oxygen sensor, cleaned and inspected inject...
June 15, 2006
1997 Chevrolet Cavalier LS 2.2L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1G1JF5243V
P0172: Fuel System Rich (Bank 1). This car is over fueling. It is loading up so bad that it will miss at idle. The o-2 stays at .9 most of the time untill the short term get to about -34%. Then it tries to switch rich- lean. This car has no test port for fuel presure test. I thought it was lea...
June 21, 2006