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P0172 Diagnostic Trouble Code Discussion for September 2006

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
1998 Pontiac Sunfire SE 2.2L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy VIN: 3G2JB1246W
P0172: Fuel System Rich (Bank 1). Good Day, Folks! While idling in the shop and watching the scan tool data, the injector pulse width intermittantly will jump up to over 8ms, (from around 2.5ms @ normal idle) This occurs WITH NO CHANGE IN ALL OTHER DATA such as MAP, ECT, TPS etc. This naturall...
September 08, 2006
1998 Pontiac Sunfire SE 2.2L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy VIN: 3G2JB1246W
P0172: Fuel System Rich (Bank 1). Good Day, Folks! While idling in the shop and watching the scan tool data, the injector pulse width intermittantly will jump up to over 8ms, (from around 2.5ms @ normal idle) This occurs WITH NO CHANGE IN ALL OTHER DATA such as MAP, ECT, TPS etc. This naturall...
September 14, 2006
2002 Cadillac Seville SLS 4.6L MIL Lamp on VIN: 1G6KS54Y02
P0172: Fuel Trim System Rich (Bank 1). Greetings techs, I need some Cadillac help. This SLS has banks 1 and 2 rich codes. I am finding the fuel pressure confusing. What is the fuel pressure supposed to be on this Cadillac when it's running? The only thing MOD says is that it is supposed to be 41-47...
September 15, 2006
2001 Ford E-150 Econoline 4.2L MIL Lamp on VIN: 1FTRE14231
P0172: bank 2 lean. evap and cat monitors always incomplete have chaged dpfe still my signal votage never gets above 1.6 volts key on eng off ref voltage 5 volts signal voltage 5 volts I believe my egr system some how is my problem all parts are new also have cleand injectos. I d...
September 17, 2006
2001 Nissan PRIMERA 2500CC No Acceleration VIN: WRP12-0002
P0172: System too rich bank 1. Vehicle came in with a no acceleration and engine check light on. Pulled codes and found a PO172 System too rich bank 1. We have checked the mass airflow sensor, the bank 1 o2 sensor, checked the exhaust for leaks and have check the o2 sensor wiring back to t...
September 20, 2006
2003 Ford Expedition Eddie Bauer 4.6L MIL Lamp on VIN: 1FMRU17W83
P0172: systen too rich b1. This car set code P0172 I have check, fuel pressure, vacumm lines, fuel lines, flow meter, cam timing, compression etc...I erase the code and it will set after a short drive of while it is at idling. Ford tech all your help is welcome.
September 21, 2006
2003 Ford Expedition Eddie Bauer 4.6L MIL Lamp on VIN: 1FMRU17W83
P0172: systen too rich b1. This car set code P0172 I have check, fuel pressure, vacumm lines, fuel lines, flow meter, cam timing, compression etc...I erase the code and it will set after a short drive of while it is at idling. Ford tech all your help is welcome.
September 22, 2006
2001 Isuzu Rodeo LS 3.2L Excessive Emissions, Poor Idle Quality, Stall VIN: 4S2DM58W41
P0172: Fuel System Too Rich (Bank 1). Vehicle came to our shop,customer stated that it needed 02 sensors but didn't know which one.Scan test showed codes for both pre 02 sensors;lean and rich.Had problems with scanner;no communicatin.Several attempts changing settings finally retrieved codes.02's ...
September 25, 2006
1996 Pontiac Grand Am SE 2.4L catalyst monitor VIN: 1G2NE12T3T
P0172: Fuel System Rich. hello everyone , hope you can direct us to a repair or info on how to determine a solution to a catalyst monitor that wont run . vehicle came in with 4 codes , rear o2 slow, cat low efficiency, knock sensor activity , rich bank 1, weve got it all repaired and ...
September 27, 2006
1996 Pontiac Grand Am SE 2.4L catalyst monitor VIN: 1G2NE12T3T
P0172: Fuel System Rich. hello everyone , hope you can direct us to a repair or info on how to determine a solution to a catalyst monitor that wont run . vehicle came in with 4 codes , rear o2 slow, cat low efficiency, knock sensor activity , rich bank 1, weve got it all repaired and ...
September 29, 2006
2002 Subaru Legacy GT 2.5L Poor Fuel Economy, MIL Lamp on VIN: 4S3BH64592
P0172: Fuel System Too Rich (Bank 1). ... want to stay gone. originally came in with a P0172 fuel trim too rich and the dealer said it needed a air fuel ratio sensor. we installed a factory sensor as per dealer info and the light came on with the same code a week later.cleared the code and the lig...
September 29, 2006
1998 Pontiac Sunfire SE 2.2L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy VIN: 3G2JB1246W
P0172: Fuel System Rich (Bank 1). Good Day, Folks! While idling in the shop and watching the scan tool data, the injector pulse width intermittantly will jump up to over 8ms, (from around 2.5ms @ normal idle) This occurs WITH NO CHANGE IN ALL OTHER DATA such as MAP, ECT, TPS etc. This naturall...
September 08, 2006
1998 Pontiac Sunfire SE 2.2L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy VIN: 3G2JB1246W
P0172: Fuel System Rich (Bank 1). Good Day, Folks! While idling in the shop and watching the scan tool data, the injector pulse width intermittantly will jump up to over 8ms, (from around 2.5ms @ normal idle) This occurs WITH NO CHANGE IN ALL OTHER DATA such as MAP, ECT, TPS etc. This naturall...
September 14, 2006
2002 Cadillac Seville SLS 4.6L MIL Lamp on VIN: 1G6KS54Y02
P0172: Fuel Trim System Rich (Bank 1). Greetings techs, I need some Cadillac help. This SLS has banks 1 and 2 rich codes. I am finding the fuel pressure confusing. What is the fuel pressure supposed to be on this Cadillac when it's running? The only thing MOD says is that it is supposed to be 41-47...
September 15, 2006
2001 Ford E-150 Econoline 4.2L MIL Lamp on VIN: 1FTRE14231
P0172: bank 2 lean. evap and cat monitors always incomplete have chaged dpfe still my signal votage never gets above 1.6 volts key on eng off ref voltage 5 volts signal voltage 5 volts I believe my egr system some how is my problem all parts are new also have cleand injectos. I d...
September 17, 2006
2001 Nissan PRIMERA 2500CC No Acceleration VIN: WRP12-0002
P0172: System too rich bank 1. Vehicle came in with a no acceleration and engine check light on. Pulled codes and found a PO172 System too rich bank 1. We have checked the mass airflow sensor, the bank 1 o2 sensor, checked the exhaust for leaks and have check the o2 sensor wiring back to t...
September 20, 2006
2003 Ford Expedition Eddie Bauer 4.6L MIL Lamp on VIN: 1FMRU17W83
P0172: systen too rich b1. This car set code P0172 I have check, fuel pressure, vacumm lines, fuel lines, flow meter, cam timing, compression etc...I erase the code and it will set after a short drive of while it is at idling. Ford tech all your help is welcome.
September 21, 2006
2003 Ford Expedition Eddie Bauer 4.6L MIL Lamp on VIN: 1FMRU17W83
P0172: systen too rich b1. This car set code P0172 I have check, fuel pressure, vacumm lines, fuel lines, flow meter, cam timing, compression etc...I erase the code and it will set after a short drive of while it is at idling. Ford tech all your help is welcome.
September 22, 2006
2001 Isuzu Rodeo LS 3.2L Excessive Emissions, Poor Idle Quality, Stall VIN: 4S2DM58W41
P0172: Fuel System Too Rich (Bank 1). Vehicle came to our shop,customer stated that it needed 02 sensors but didn't know which one.Scan test showed codes for both pre 02 sensors;lean and rich.Had problems with scanner;no communicatin.Several attempts changing settings finally retrieved codes.02's ...
September 25, 2006
1996 Pontiac Grand Am SE 2.4L catalyst monitor VIN: 1G2NE12T3T
P0172: Fuel System Rich. hello everyone , hope you can direct us to a repair or info on how to determine a solution to a catalyst monitor that wont run . vehicle came in with 4 codes , rear o2 slow, cat low efficiency, knock sensor activity , rich bank 1, weve got it all repaired and ...
September 27, 2006
1996 Pontiac Grand Am SE 2.4L catalyst monitor VIN: 1G2NE12T3T
P0172: Fuel System Rich. hello everyone , hope you can direct us to a repair or info on how to determine a solution to a catalyst monitor that wont run . vehicle came in with 4 codes , rear o2 slow, cat low efficiency, knock sensor activity , rich bank 1, weve got it all repaired and ...
September 29, 2006
2002 Subaru Legacy GT 2.5L Poor Fuel Economy, MIL Lamp on VIN: 4S3BH64592
P0172: Fuel System Too Rich (Bank 1). ... want to stay gone. originally came in with a P0172 fuel trim too rich and the dealer said it needed a air fuel ratio sensor. we installed a factory sensor as per dealer info and the light came on with the same code a week later.cleared the code and the lig...
September 29, 2006