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P0172 Diagnostic Trouble Code Discussion for September 2007

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
2002 Buick Century Custom 3.1L Excessive Emissions, MIL Lamp on VIN: 2G4WS52J52
P0172: Fuel System Rich. I have this 2002 buick century that is running rich long term trim is -25% The O2 sensor and injectors have been replaced The other sensors such as TPS MAP and MAF seem to be operating within normal parameters anyone have any suggestions Help would be greatly ...
September 04, 2007
2002 Buick Century Custom 3.1L Excessive Emissions, MIL Lamp on VIN: 2G4WS52J52
P0172: Fuel System Rich. I have this 2002 buick century that is running rich long term trim is -25% The O2 sensor and injectors have been replaced The other sensors such as TPS MAP and MAF seem to be operating within normal parameters anyone have any suggestions Help would be greatly ...
September 04, 2007
2002 Buick Century Custom 3.1L Excessive Emissions, MIL Lamp on VIN: 2G4WS52J52
P0172: Fuel System Rich. I have this 2002 buick century that is running rich long term trim is -25% The O2 sensor and injectors have been replaced The other sensors such as TPS MAP and MAF seem to be operating within normal parameters anyone have any suggestions Help would be greatly ...
September 05, 2007
2000 Chevrolet S10 4.3L Excessive Emissions, MIL Lamp on VIN: 1GCDT14W9Y
P0172: Fuel System Rich. ... came in with a check engine light on, we initialy scanned and had p0172 and p0175 bank 1+2 rich, we checked fuel pressure and it was 60psi, good. while monitoring the scanner we noticed the fuel trims were way high, lt fu...
September 05, 2007
2000 Chevrolet S10 4.3L Excessive Emissions, MIL Lamp on VIN: 1GCDT14W9Y
P0172: Fuel System Rich. ... came in with a check engine light on, we initialy scanned and had p0172 and p0175 bank 1+2 rich, we checked fuel pressure and it was 60psi, good. while monitoring the scanner we noticed the fuel trims were way high, lt fu...
September 06, 2007
2002 Ford Explorer Sport Trac XL 4.0L MIL Lamp on VIN: 1FMZU77E12
P0172: rich exh. Here is my question... Fuel pump in this returnless system is always commanded at 100% even when its already running with too much pressure and rich. I know the pump module is bad but Im not sure that would explane why the pump is comanded 100% on all the time...
September 07, 2007
1998 Chevrolet Malibu 2.4L Poor Idle Quality, Hesitation, Cuts out, Misfire VIN: 1G1ND52T3W
P0172: Fuel System Rich. ... Malibu came to us after work done at another shop. Owner said that car was missing and so took car to another shop (while in a different city) plugs, coil tower, plug boot kits and coils replaced. Owner said that other shop found misfires on cylinders 2 &a...
September 11, 2007
2000 Dodge Intrepid ES 3.2L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 2B3HD56J4Y
P0172: Fuel System Rich (Bank 1). Car runs rich on right bank all the time.Sensors readings look ok.Switched o2 sensors from right bank to left bank same thing.Compression is good in all cylinders.Right side plugs sooty left side plugs clean. New plugs before we got it.If you do and injector b...
September 11, 2007
2000 Ford F-150 Lariat 5.4L Poor Idle Quality VIN: 1FTRX18L9Y
P0172: b1 too rich. I have this F150 that runs good until I turn the a/c on. Both front o2 sensors voltages jump to exactly 1.67 volts and then stay there a while and then the truck loads up with gas and surges up and down. Turn off the a/c and o2 voltages come back to normal. I ...
September 12, 2007
2003 Mercury Sable LS 3.0L MIL Lamp on VIN: 1MEFM55S53
P0172: Bank 1 too rich. ... 2003 sable 3.0 DOHC that continually throws codes P0172/P0175 system too rich. The long term fuel trims are constantly around -15,-16,-17 and up at idle. The car is well taken care of and has a little over 60K miles. The tu...
September 12, 2007
2003 Mercury Sable LS 3.0L MIL Lamp on VIN: 1MEFM55S53
P0172: Bank 1 too rich. ... 2003 sable 3.0 DOHC that continually throws codes P0172/P0175 system too rich. The long term fuel trims are constantly around -15,-16,-17 and up at idle. The car is well taken care of and has a little over 60K miles. The tu...
September 15, 2007
2004 Suzuki Verona EX 2.5L Hesitation, Surge, Cuts out, Stall, Poor Fuel Economy, MIL Lamp on VIN: KL5VM52L74
P0172: Fuel System Too Rich (Bank 1). ... our shop stumped. We have a 2004 Suzuki Verona that is having a hesitation when under a load. You can put the accelerator to the floor and nothing will happen, almost like it lugs down and stumbles for 3-5 seconds, and then it will kick in and accelerate f...
September 20, 2007
2002 Buick Century Custom 3.1L Excessive Emissions, MIL Lamp on VIN: 2G4WS52J52
P0172: Fuel System Rich. I have this 2002 buick century that is running rich long term trim is -25% The O2 sensor and injectors have been replaced The other sensors such as TPS MAP and MAF seem to be operating within normal parameters anyone have any suggestions Help would be greatly ...
September 04, 2007
2002 Buick Century Custom 3.1L Excessive Emissions, MIL Lamp on VIN: 2G4WS52J52
P0172: Fuel System Rich. I have this 2002 buick century that is running rich long term trim is -25% The O2 sensor and injectors have been replaced The other sensors such as TPS MAP and MAF seem to be operating within normal parameters anyone have any suggestions Help would be greatly ...
September 04, 2007
2002 Buick Century Custom 3.1L Excessive Emissions, MIL Lamp on VIN: 2G4WS52J52
P0172: Fuel System Rich. I have this 2002 buick century that is running rich long term trim is -25% The O2 sensor and injectors have been replaced The other sensors such as TPS MAP and MAF seem to be operating within normal parameters anyone have any suggestions Help would be greatly ...
September 05, 2007
2000 Chevrolet S10 4.3L Excessive Emissions, MIL Lamp on VIN: 1GCDT14W9Y
P0172: Fuel System Rich. ... came in with a check engine light on, we initialy scanned and had p0172 and p0175 bank 1+2 rich, we checked fuel pressure and it was 60psi, good. while monitoring the scanner we noticed the fuel trims were way high, lt fu...
September 05, 2007
2000 Chevrolet S10 4.3L Excessive Emissions, MIL Lamp on VIN: 1GCDT14W9Y
P0172: Fuel System Rich. ... came in with a check engine light on, we initialy scanned and had p0172 and p0175 bank 1+2 rich, we checked fuel pressure and it was 60psi, good. while monitoring the scanner we noticed the fuel trims were way high, lt fu...
September 06, 2007
2002 Ford Explorer Sport Trac XL 4.0L MIL Lamp on VIN: 1FMZU77E12
P0172: rich exh. Here is my question... Fuel pump in this returnless system is always commanded at 100% even when its already running with too much pressure and rich. I know the pump module is bad but Im not sure that would explane why the pump is comanded 100% on all the time...
September 07, 2007
1998 Chevrolet Malibu 2.4L Poor Idle Quality, Hesitation, Cuts out, Misfire VIN: 1G1ND52T3W
P0172: Fuel System Rich. ... Malibu came to us after work done at another shop. Owner said that car was missing and so took car to another shop (while in a different city) plugs, coil tower, plug boot kits and coils replaced. Owner said that other shop found misfires on cylinders 2 &a...
September 11, 2007
2000 Dodge Intrepid ES 3.2L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 2B3HD56J4Y
P0172: Fuel System Rich (Bank 1). Car runs rich on right bank all the time.Sensors readings look ok.Switched o2 sensors from right bank to left bank same thing.Compression is good in all cylinders.Right side plugs sooty left side plugs clean. New plugs before we got it.If you do and injector b...
September 11, 2007
2000 Ford F-150 Lariat 5.4L Poor Idle Quality VIN: 1FTRX18L9Y
P0172: b1 too rich. I have this F150 that runs good until I turn the a/c on. Both front o2 sensors voltages jump to exactly 1.67 volts and then stay there a while and then the truck loads up with gas and surges up and down. Turn off the a/c and o2 voltages come back to normal. I ...
September 12, 2007
2003 Mercury Sable LS 3.0L MIL Lamp on VIN: 1MEFM55S53
P0172: Bank 1 too rich. ... 2003 sable 3.0 DOHC that continually throws codes P0172/P0175 system too rich. The long term fuel trims are constantly around -15,-16,-17 and up at idle. The car is well taken care of and has a little over 60K miles. The tu...
September 12, 2007
2003 Mercury Sable LS 3.0L MIL Lamp on VIN: 1MEFM55S53
P0172: Bank 1 too rich. ... 2003 sable 3.0 DOHC that continually throws codes P0172/P0175 system too rich. The long term fuel trims are constantly around -15,-16,-17 and up at idle. The car is well taken care of and has a little over 60K miles. The tu...
September 15, 2007
2004 Suzuki Verona EX 2.5L Hesitation, Surge, Cuts out, Stall, Poor Fuel Economy, MIL Lamp on VIN: KL5VM52L74
P0172: Fuel System Too Rich (Bank 1). ... our shop stumped. We have a 2004 Suzuki Verona that is having a hesitation when under a load. You can put the accelerator to the floor and nothing will happen, almost like it lugs down and stumbles for 3-5 seconds, and then it will kick in and accelerate f...
September 20, 2007