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P0172 Diagnostic Trouble Code Discussion for December 2009

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
2000 Saturn SL 1.9L Poor Fuel Economy, MIL Lamp on VIN: 1G8ZH5287Y
P0172: Fuel Trim System Rich (Bank 1). tried "everything" plugs don't reflect rich condition forced lean by removing pcv -- engine revs to 1500 rpm's & b1s1 dips a little to .600 vdc & climbs back up short term trim is at -50 at idle with vacuum leak induced, short term trim only ...
December 07, 2009
2001 Volkswagen Beetle GL 2.0L Poor Idle Quality, Surge, Stall, Poor Fuel Economy VIN: 3VWCB21C61
P0172: System to rich bank 1. Came in with multiple codes, changed coolant temp sensor and drove fine for few trips (small trips) then started running rough, idle hunting customer also said they noticed it seems to use more fuel. Drove a few times to get check engine light and now have the...
December 07, 2009
2006 Lincoln Mark LT 5.4L Hesitation, Poor Fuel Economy, MIL Lamp on VIN: 5LTPW16506
P0172: rich bank 1. missfire occures at 1800 rpm , drives poors
December 10, 2009
2003 Saturn L200 2.2L Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1G8JU54F73
P0172: Fuel Trim System Rich (Bank 1). I'm having a shifting issue with this vehicle, its lacking power too but that can be due to the cat converter(waiting for part). The unit shifts at high RPM under load 3900 to 4100 rpm. When at express way speeds under acceleration it will down shift to 2nd ge...
December 10, 2009
1999 Ford Explorer XLT 4.0L Poor Idle Quality, Misfire VIN: 1FMZU34E6X
TRUCK CAME IN ROUGH IDLE AND MILL ON FOUND ALL THE CODES LISTED ABOVE AND ALSO FOUND THE VACUUM LEAK ALSO THE PASSENGER SIDE HEAD HAS LOUD KNOCKING NOISE THOUGHT WAS THE TIMING CHAIN BECAUSE FOUND THAT IT WAS LOOSE. FOUND TSB FOR CHAIN NOISE AND DID THE REPAIR...
December 15, 2009
1999 Ford Explorer XLT 4.0L Poor Idle Quality, Misfire VIN: 1FMZU34E6X
TRUCK CAME IN ROUGH IDLE AND MILL ON FOUND ALL THE CODES LISTED ABOVE AND ALSO FOUND THE VACUUM LEAK ALSO THE PASSENGER SIDE HEAD HAS LOUD KNOCKING NOISE THOUGHT WAS THE TIMING CHAIN BECAUSE FOUND THAT IT WAS LOOSE. FOUND TSB FOR CHAIN NOISE AND DID THE REPAIR...
December 19, 2009
2002 Honda CR-V LX 2.4L No Start, Misfire, Poor Fuel Economy, MIL Lamp on, Rich VIN: SHSRD68422
P0172: Fuel System Too Rich (Bank 1). Hello everyone. The main problem with this vehicle is it runs very rich. So much so that when cold it will soak the spark plugs and not start. I pulled the plugs and let it sit overnight. I did the compression check and re-installed the plugs. It starts and ru...
December 22, 2009
2000 Ford Explorer Postal 4.0L MIL Lamp on
P0172: bank 1 too rich. o2 sensors look ok, switching normally. i'm wondering why this fuel level sensor code would come back, the gauge is reading normal (according to the PID). stft bank 1 is around +10%.i've read that maf's are common problems on there engines, but it seems normal...
December 30, 2009
2000 Saturn SL 1.9L Poor Fuel Economy, MIL Lamp on VIN: 1G8ZH5287Y
P0172: Fuel Trim System Rich (Bank 1). tried "everything" plugs don't reflect rich condition forced lean by removing pcv -- engine revs to 1500 rpm's & b1s1 dips a little to .600 vdc & climbs back up short term trim is at -50 at idle with vacuum leak induced, short term trim only ...
December 07, 2009
2001 Volkswagen Beetle GL 2.0L Poor Idle Quality, Surge, Stall, Poor Fuel Economy VIN: 3VWCB21C61
P0172: System to rich bank 1. Came in with multiple codes, changed coolant temp sensor and drove fine for few trips (small trips) then started running rough, idle hunting customer also said they noticed it seems to use more fuel. Drove a few times to get check engine light and now have the...
December 07, 2009
2006 Lincoln Mark LT 5.4L Hesitation, Poor Fuel Economy, MIL Lamp on VIN: 5LTPW16506
P0172: rich bank 1. missfire occures at 1800 rpm , drives poors
December 10, 2009
2003 Saturn L200 2.2L Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1G8JU54F73
P0172: Fuel Trim System Rich (Bank 1). I'm having a shifting issue with this vehicle, its lacking power too but that can be due to the cat converter(waiting for part). The unit shifts at high RPM under load 3900 to 4100 rpm. When at express way speeds under acceleration it will down shift to 2nd ge...
December 10, 2009
1999 Ford Explorer XLT 4.0L Poor Idle Quality, Misfire VIN: 1FMZU34E6X
TRUCK CAME IN ROUGH IDLE AND MILL ON FOUND ALL THE CODES LISTED ABOVE AND ALSO FOUND THE VACUUM LEAK ALSO THE PASSENGER SIDE HEAD HAS LOUD KNOCKING NOISE THOUGHT WAS THE TIMING CHAIN BECAUSE FOUND THAT IT WAS LOOSE. FOUND TSB FOR CHAIN NOISE AND DID THE REPAIR...
December 15, 2009
1999 Ford Explorer XLT 4.0L Poor Idle Quality, Misfire VIN: 1FMZU34E6X
TRUCK CAME IN ROUGH IDLE AND MILL ON FOUND ALL THE CODES LISTED ABOVE AND ALSO FOUND THE VACUUM LEAK ALSO THE PASSENGER SIDE HEAD HAS LOUD KNOCKING NOISE THOUGHT WAS THE TIMING CHAIN BECAUSE FOUND THAT IT WAS LOOSE. FOUND TSB FOR CHAIN NOISE AND DID THE REPAIR...
December 19, 2009
2002 Honda CR-V LX 2.4L No Start, Misfire, Poor Fuel Economy, MIL Lamp on, Rich VIN: SHSRD68422
P0172: Fuel System Too Rich (Bank 1). Hello everyone. The main problem with this vehicle is it runs very rich. So much so that when cold it will soak the spark plugs and not start. I pulled the plugs and let it sit overnight. I did the compression check and re-installed the plugs. It starts and ru...
December 22, 2009
2000 Ford Explorer Postal 4.0L MIL Lamp on
P0172: bank 1 too rich. o2 sensors look ok, switching normally. i'm wondering why this fuel level sensor code would come back, the gauge is reading normal (according to the PID). stft bank 1 is around +10%.i've read that maf's are common problems on there engines, but it seems normal...
December 30, 2009