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P0172 Diagnostic Trouble Code Discussion for November 2008

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
1999 Chevrolet Malibu 3.1L Cuts out, 17inch,vac-22iac mot VIN: 1G1ND52J7X
P0172: Fuel System Rich. thank you all up front! i have three concerns. most troubling,any time gas is added the car stalls after the added gas(it had 3/4 tank of gas already,i added5.00- not even 2gals.)it stalled when restarting the car.again i did have a purge during non-command co...
November 04, 2008
2000 Chevrolet Blazer LS 4.3L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: 1GNDT13W0Y
P0172: Fuel System Rich (Bank 1). ... mil on. Pulled out codes p0172 and p0175 running rich. Also 02 sensor codes p1133 and p1153. Checked fuel pressure, 74 psi when running seemed high to me. Replaced regulator because of high failure rate. retested fuel pr...
November 04, 2008
2004 GMC Yukon SLE 5.3L MIL Lamp on VIN: 1GKEC13T34
P0172: Fuel Trim System Rich (Bank 1). The vehicle came in yesterday with rich codes PO172 and PO175 (rich bank 1 and rich bank 2) stored and an abs code CO298 loss of communication with pcm/vcm. The fuel pressure is over 100 psi koer and 50 psi koeo. The fuel pressure spec is 55-62 psi koeo. We kn...
November 06, 2008
1999 Chevrolet Malibu 3.1L Cuts out, 17inch,vac-22iac mot VIN: 1G1ND52J7X
P0172: Fuel System Rich. thank you all up front! i have three concerns. most troubling,any time gas is added the car stalls after the added gas(it had 3/4 tank of gas already,i added5.00- not even 2gals.)it stalled when restarting the car.again i did have a purge during non-command co...
November 07, 2008
2002 Ford Explorer XLT 4.0L hard start VIN: 1FMZU73K22
P0172: fuel system rich bank 1. Towed in as a no start. Plugs were original and soaked w/fuel. Replaced plugs and fuel filter and now the car will start if the throttle is held wide open. once it is started it runs ok but the long term fuel trim is at -25 on both banks. the short term stays ...
November 14, 2008
1997 Saturn SL2 1.9L MIL Lamp on
P0172: Fuel Trim System Rich (Bank 1). ... what this problem is. car needs to pass smog. retrieved 1 code P0172 runnin rich. ive checked compression good,spark plugs good, valves ok,map sensor working ok. the fuel pressure however is kinda low. somedata says psi should be 31-36psi(vac on/off??) don...
November 15, 2008
1997 Saturn SL2 1.9L MIL Lamp on
P0172: Fuel Trim System Rich (Bank 1). ... what this problem is. car needs to pass smog. retrieved 1 code P0172 runnin rich. ive checked compression good,spark plugs good, valves ok,map sensor working ok. the fuel pressure however is kinda low. somedata says psi should be 31-36psi(vac on/off??) don...
November 16, 2008
2005 Chevrolet Silverado 1500 4.3L Poor Idle Quality, Misfire, MIL Lamp on, Hard Start VIN: 1GCEC14X85
P0172: Fuel Trim System Rich (Bank 1). Ok guys I have this Two wheel drive chevy that runs rich on both banks. This is a newer 4.3 that is a returnless fuel injection system.It set a random misfire code and all of the listed codes. Looking at the history it has missed on all cylinders but the the b...
November 18, 2008
1997 Pontiac Sunfire SE 2.2L Excessive Emissions, Misfire, VIN: 3G2JB524VS
P0172: Fuel System Rich (Bank 1). vehicle failed smog test due to mil on. had random misfires on all cylinders. sputtered in park until rpm reaches about 3300, then smoothes out and rpm increases to 3900. ease up on gas and then rpm drops and starts sputtering again. scan tool shows that timin...
November 18, 2008
2005 Chrysler 300 (Car) C 5.7L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on, ETC VIN: 2C3AAG3H05
P0172: Fuel System 1/1 Rich. Intermittently our customer describes having the Electronic Throttle Control warning and the MIL come on and the car starts idling poorly and almost stalling. Problem is hard to duplicate in the shop for testing although I did notice that the Acc sensor seeme...
November 19, 2008
2000 Jaguar XJ8 4.0L Poor Fuel Economy, MIL Lamp on VIN: SAJDA23CXV
P0172: bank 1 rich. Car came in w/ Check engine light on with no running complaints. Connected Launch to the vehicle pulled 2 codes PO172 and po175. Long term fuel trim is a -20.4 and Short term fuel trim is at 25.2 for both banks. Fuel pressure regulator is good and not leaking,...
November 19, 2008
1997 Pontiac Sunfire SE 2.2L Excessive Emissions, Misfire, VIN: 3G2JB524VS
P0172: Fuel System Rich (Bank 1). vehicle failed smog test due to mil on. had random misfires on all cylinders. sputtered in park until rpm reaches about 3300, then smoothes out and rpm increases to 3900. ease up on gas and then rpm drops and starts sputtering again. scan tool shows that timin...
November 19, 2008
1998 Chevrolet Malibu LS 3.1L No Start, Poor Idle Quality VIN: 1G1NE52M1W
P0172: Fuel System Rich. Hi everyone This 98 chevy Malibu has a problem when you first start up vehicle. (cold) and when it sits for a few hours or so. When I crank the engine the motor will not run right away.(long crank condition) Sometimes it will catch and the rpm will vary. While...
November 21, 2008
1999 Chevrolet Malibu 3.1L Cuts out, 17inch,vac-22iac mot VIN: 1G1ND52J7X
P0172: Fuel System Rich. thank you all up front! i have three concerns. most troubling,any time gas is added the car stalls after the added gas(it had 3/4 tank of gas already,i added5.00- not even 2gals.)it stalled when restarting the car.again i did have a purge during non-command co...
November 04, 2008
2000 Chevrolet Blazer LS 4.3L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: 1GNDT13W0Y
P0172: Fuel System Rich (Bank 1). ... mil on. Pulled out codes p0172 and p0175 running rich. Also 02 sensor codes p1133 and p1153. Checked fuel pressure, 74 psi when running seemed high to me. Replaced regulator because of high failure rate. retested fuel pr...
November 04, 2008
2004 GMC Yukon SLE 5.3L MIL Lamp on VIN: 1GKEC13T34
P0172: Fuel Trim System Rich (Bank 1). The vehicle came in yesterday with rich codes PO172 and PO175 (rich bank 1 and rich bank 2) stored and an abs code CO298 loss of communication with pcm/vcm. The fuel pressure is over 100 psi koer and 50 psi koeo. The fuel pressure spec is 55-62 psi koeo. We kn...
November 06, 2008
1999 Chevrolet Malibu 3.1L Cuts out, 17inch,vac-22iac mot VIN: 1G1ND52J7X
P0172: Fuel System Rich. thank you all up front! i have three concerns. most troubling,any time gas is added the car stalls after the added gas(it had 3/4 tank of gas already,i added5.00- not even 2gals.)it stalled when restarting the car.again i did have a purge during non-command co...
November 07, 2008
2002 Ford Explorer XLT 4.0L hard start VIN: 1FMZU73K22
P0172: fuel system rich bank 1. Towed in as a no start. Plugs were original and soaked w/fuel. Replaced plugs and fuel filter and now the car will start if the throttle is held wide open. once it is started it runs ok but the long term fuel trim is at -25 on both banks. the short term stays ...
November 14, 2008
1997 Saturn SL2 1.9L MIL Lamp on
P0172: Fuel Trim System Rich (Bank 1). ... what this problem is. car needs to pass smog. retrieved 1 code P0172 runnin rich. ive checked compression good,spark plugs good, valves ok,map sensor working ok. the fuel pressure however is kinda low. somedata says psi should be 31-36psi(vac on/off??) don...
November 15, 2008
1997 Saturn SL2 1.9L MIL Lamp on
P0172: Fuel Trim System Rich (Bank 1). ... what this problem is. car needs to pass smog. retrieved 1 code P0172 runnin rich. ive checked compression good,spark plugs good, valves ok,map sensor working ok. the fuel pressure however is kinda low. somedata says psi should be 31-36psi(vac on/off??) don...
November 16, 2008
2005 Chevrolet Silverado 1500 4.3L Poor Idle Quality, Misfire, MIL Lamp on, Hard Start VIN: 1GCEC14X85
P0172: Fuel Trim System Rich (Bank 1). Ok guys I have this Two wheel drive chevy that runs rich on both banks. This is a newer 4.3 that is a returnless fuel injection system.It set a random misfire code and all of the listed codes. Looking at the history it has missed on all cylinders but the the b...
November 18, 2008
1997 Pontiac Sunfire SE 2.2L Excessive Emissions, Misfire, VIN: 3G2JB524VS
P0172: Fuel System Rich (Bank 1). vehicle failed smog test due to mil on. had random misfires on all cylinders. sputtered in park until rpm reaches about 3300, then smoothes out and rpm increases to 3900. ease up on gas and then rpm drops and starts sputtering again. scan tool shows that timin...
November 18, 2008
2005 Chrysler 300 (Car) C 5.7L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on, ETC VIN: 2C3AAG3H05
P0172: Fuel System 1/1 Rich. Intermittently our customer describes having the Electronic Throttle Control warning and the MIL come on and the car starts idling poorly and almost stalling. Problem is hard to duplicate in the shop for testing although I did notice that the Acc sensor seeme...
November 19, 2008
2000 Jaguar XJ8 4.0L Poor Fuel Economy, MIL Lamp on VIN: SAJDA23CXV
P0172: bank 1 rich. Car came in w/ Check engine light on with no running complaints. Connected Launch to the vehicle pulled 2 codes PO172 and po175. Long term fuel trim is a -20.4 and Short term fuel trim is at 25.2 for both banks. Fuel pressure regulator is good and not leaking,...
November 19, 2008
1997 Pontiac Sunfire SE 2.2L Excessive Emissions, Misfire, VIN: 3G2JB524VS
P0172: Fuel System Rich (Bank 1). vehicle failed smog test due to mil on. had random misfires on all cylinders. sputtered in park until rpm reaches about 3300, then smoothes out and rpm increases to 3900. ease up on gas and then rpm drops and starts sputtering again. scan tool shows that timin...
November 19, 2008
1998 Chevrolet Malibu LS 3.1L No Start, Poor Idle Quality VIN: 1G1NE52M1W
P0172: Fuel System Rich. Hi everyone This 98 chevy Malibu has a problem when you first start up vehicle. (cold) and when it sits for a few hours or so. When I crank the engine the motor will not run right away.(long crank condition) Sometimes it will catch and the rpm will vary. While...
November 21, 2008