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P0172 Diagnostic Trouble Code Discussion for July 2010

Fuel System Rich (Bank 1) *

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Trouble Ticket Help Requests for DTC P0172

	Help Request	Posted
	1994 Ford Ranger XLT 4.0L Hesitation, Cuts out, Stall, MIL Lamp on VIN: 1FTCR14X2R P0172: System lean bank 1. Guys, this vehicle literally limped into shop. check engine light on, pops back constantly under acceleration, it had 2 air flow codes and a lean code. Under acceleration injector pulse width goes to the max and oxygen sensors go very lean. We replaced the ai...	July 02, 2010
	2002 Volvo S80 T6 2.9L No Start, Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: YV1TS91D12 P0172: system too rich. ... restart after a hot soak, after clearing codes it will restart and run good for about 2 days then back to the same problem when the light comes back on. I have very little info on volvo. I have found only 1 post with the same exact codes and problem, but i...	July 12, 2010
	1999 Ford Ranger XL 2.5L MIL Lamp on VIN: 1FTYR10C8X P0172: Fuel system too rich bank 1. ... some grief. Came in with MIL on and code P0172-Fuel system too rich bank 1. has Long term fuel trim at -25% and short term fuel trim at -14%. Recently had a tune up( plugs, wires, air filter, intake service). Fuel pressure is at 66psi at all times even whe...	July 13, 2010
	1999 Ford Ranger XL 2.5L MIL Lamp on VIN: 1FTYR10C8X P0172: Fuel system too rich bank 1. ... some grief. Came in with MIL on and code P0172-Fuel system too rich bank 1. has Long term fuel trim at -25% and short term fuel trim at -14%. Recently had a tune up( plugs, wires, air filter, intake service). Fuel pressure is at 66psi at all times even whe...	July 14, 2010
	2005 Ford F-150 FX4 5.4L MIL Lamp on VIN: 1FTPW14555 P0172: Fuel system too rich Bank 1. tested for any exhaust restrictions, tested oxygen sensors, throttle body switched with a known good unit	July 19, 2010
	2000 Ford Explorer XLT 4.0L Stall, MIL Lamp on VIN: 1FMDU74E5Y P0172: bank 1 lean. ... the cel and found the two codes p0172 p0175 and which are kinda uncommon on these from my understanding. I tested fuel pressure and had 90 psi and replaced the fuel pressure regulator. i tried to actuate the regulator wit...	July 28, 2010
	1996 Ford Ranger XL 2.3L Poor Idle Quality, Surge, Cuts out, MIL Lamp on VIN: 1FTCR1OA7T P0172: Rich exhaust bank 1. thanks in advance for any input, the customer brought this vehicle to our shop after another shop replaced his broken t-belt. when he got it from them there was no power and no acceleration. it would barely make it up a hill. he took it back and they told him ...	July 30, 2010
	2005 Ford F-150 FX4 5.4L MIL Lamp on VIN: 1FTPW14555 P0172: Fuel system too rich Bank 1. tested for any exhaust restrictions, tested oxygen sensors, throttle body switched with a known good unit	July 30, 2010