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P0172 Diagnostic Trouble Code Discussion for May 2005

Fuel System Rich (Bank 1)

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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
2001 Toyota Corolla CE 1.8L Hesitation, MIL Lamp on VIN: 1NXBR12E41
P0172: Fuel System Too Rich (Bank 1). ... face, on acceleration. Drives just like a bad MAF sensor. Bring vehicle back into the shop check for codes, code P0172. Normally I see a code P0171 with a hesitation which is caused by a bad MAF. My LTFT is -28.9, STFT -6.2. No vacuum leaks. MAF at idle ...
May 06, 2005
1999 Volkswagen Jetta GLS 2.0L Hesitation, Cuts out VIN: 3VWSC29M0X
P0172: system too rich bank 1. ... service lof,state inspection and "throw in a set of plugs" while driving the vehicle in i saw the mil light was on here in mass that means it will fail the obd2 check. the oil was changed the plugs were replaced with bosch plugs {double platinums}...
May 13, 2005
1996 Ford Mustang 3.8L MIL Lamp on VIN: 1FALP4044T
P0172: rich b1. HI ALL, we have a 3.8 liter mustang with codes po172&po175 no running problem o2 are in line. WHEN CODES WERE SET THE FREEZE FRAME RPM 966 TEMP 185 37MPH 36.9% CLOSED LOOP LT B1 18% LT B2 14% ST B1 0.0% ST B2 +2.3
May 18, 2005
2000 Volkswagen Beetle GLS 2.0L MIL Lamp on VIN: 3VWCA21C8Y
P0172: Feul Trim Bank 1 System Too Rich. ... This car runs perfect. No problems of anykind. Customer just wants his engine light off. They can drive the car for several weeks before code 16556 (P0172)-Fuel Trim (Bank 1) System Too Rich activates. Can't really see any problem on scan tool. Replaced th...
May 23, 2005
2001 Saturn L200 2.2L Excessive Emissions VIN: 1G8JU52F61
P0172: Fuel Trim System Rich (Bank 1). ... weve seen this car it has a code p0172 system rich bank 1 sensor one , it seems to not have alot of power and shtft is at -20% at idle and long term is -13% at idle the load is at 37% at idle, fuel trim cell is at 21 the frt o2 is swiths good the rear stea...
May 26, 2005
2001 Volkswagen Jetta Wolfsburg Edition 1.8L Poor Idle Quality, Extended cranking VIN: 3VWPD69MX1
P0172: Too rich bank one. ... with all valves bent. Removed head and sent to machine shop for valve replacement etc. and reinstalled with new timing belt, hydraulic tensioner and roller. The problem is most of the time it takes a very long time to start and many times it will start and...
May 27, 2005