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P0172 Diagnostic Trouble Code Discussion for July 2007

Fuel System Rich (Bank 1)

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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
1996 Dodge Intrepid 3.5L MIL Lamp on VIN: 1B3HD46FIT
P0172: Fuel System Rich (Bank 1). hello everyone. this is doge interpid pulling my hair.car fail emission code po172 and po175. both bank rich. after repair vacuum replace map sensor, new spark plugs. there is no other vacuum leak found.clear code road tested light came back on code po172. che...
July 11, 2007
2001 Pontiac Grand Prix SE 3.8L Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: 191F257091
P0172: Fuel System Rich (Bank 1). hey guys this one is got me stuck. the 02 sensor is staying around 600 to 900 mv. fuel pressure is with in spec checked for vac. leaks none found. 02 checked out ok with vantage pro. i am out of ideas. thanks to all.
July 12, 2007
1999 Chevrolet Express 2500 5.7L Hesitation VIN: 1GAGG25R8X
P0172: Fuel Trim System Rich (Bank 1). Thanks to all fellow techs who review this and try to help me out. I have terrible luck with trying to diagnose these CSFI engines. Customer brought to our shop, it was a recent car lot purchase, with bad hesitation, back firing under slight load, checked fuel...
July 13, 2007
2004 Jeep Grand Cherokee Overland 4.7L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall VIN: 1J8GW68J64
P0172: Fuel System Rich (Bank 1). ... vehicle was towed to my shop, it starts as if flooded had rich codes stored p0175 p0172 acellerator has to be held to floor to start, it will not idle and blows black smoke, i am aware of shorted 02 sensor and have checked them, fuel pressure is normal. ma...
July 16, 2007
2004 Chevrolet Trailblazer LS 4.2L MIL Lamp on VIN: 1GNDT13S34
P0172: Fuel System Rich (Bank 1). ... with p1133 & p0172 codes in it, reflahsed computer per Bulletin #04-06-04-053. Noticed on road trip afterwards that O2 sensor acting erratic. Code p0133 came back. Put new front O2 sensor in it. O2 sensor works great now, but noticed that p0172 failed ...
July 24, 2007
2000 Toyota Corolla CE 1.8L Hesitation, Surge, Cuts out, Stall VIN: 2T1BR12EE0
P0172: Fuel System Too Rich (Bank 1). ... the shop and I am ready to ship it away. The car runs rough and when you give it throttle it pops back through the intake and if you hold it there it will throttle up. if you give it fuel slow it will die. I checked for codes and found p0172 bank one rich....
July 25, 2007
2003 Mercury Sable LS 3.0L MIL Lamp on VIN: 1MEFM55S83
P0172: system rich bank 1. ... sable with codes p0172 and p0175. Ltft is -22% and stft is -3%. I have a fuel pressure of 60 to 67 psi at idle. I spoke to three dealers one says thats normal pressure the other two say I should have 35psi. This car has ...
July 27, 2007
2001 Chrysler Town & Country Limited 3.8L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 2C8GP64L51
P0172: Fuel System Rich (Bank 1). ... checked out w/good performance and fuel economy. No CELs @ time of pickup. Within a week and one long trip, customer returned vehicle stating that intermittantly the CEL would come on.(Noted no driveability issues) Code @ that time was P0300. Found nothing...
July 31, 2007