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P0172 Diagnostic Trouble Code Discussion for June 2005

Fuel System Rich (Bank 1)

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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
2001 Saturn L300 3.0L MIL Lamp on VIN: 1G8JW54R51
P0172: Fuel Trim System Rich (Bank 2). ... Saturn person or someone smarter than me. got this L300 with rich codes, fuel pressure is normal, runs great and has very clean 4 gas readings. when checking the fuel pressure regulator we noticed that there was no vacuum to the regulator. the source comes...
June 01, 2005
1999 Ford E-150 Econoline 4.6L Excessive Emissions, Hesitation, Poor Fuel Economy, RUNS VERY RICH VIN: 1FDRE14WZX
P0172: system rich bank 1. this van originally came in due to check engine light being on.(rich codes) other tech did full tuneup. came back about 2 weeks later with light on again.(rich codes) during my inspection i found that the baro sensor was reAding 160hz(sea level 159hz). we are ...
June 03, 2005
2000 Mazda Protege DX 1.6L Stall, MIL Lamp on VIN: XXXBXXX2XY
P0172: Adaptive Fuel Trim Too Rich (Bank 1). ... before we did timing belt.Code P1512 VTAS stuck closed. Code will come back after two drive cycles. The P0172 code has not returned. Car falls on its face at midrange accel. PCM is not grounding the VTAS solenoid and opening the intake baffels. I checked ...
June 13, 2005
1997 Chevrolet Tahoe LS 5.7L MIL Lamp on VIN: 1GNEK13R7V
P0172: Fuel Trim System Rich (Bank 1). ... keep coming back. P0172 and P0175.This has been a good truck til now at over 200k miles.Every time it shows these codes it's always at highway speeds, closed throttle(on decel) and the fuel trims are as follows. LT FT bank 1 is 110,ST FT bank 1 is 128, LT...
June 18, 2005
2003 Ford Taurus LX 3.0L Hesitation, MIL Lamp on VIN: 1FAFP55233
P0172: System Rich Bank 1. This is a flex fuel car that according to owner starts to hesitate and bog down and black smoke. Found codes for rich and for fuel control pressure. Can't find any good information on the fuel pump pressure controls. Can't get system to do anything wrong. (ran...
June 22, 2005
2002 Acura MDX Touring 3.5L Poor Idle Quality, MIL Lamp on VIN: 2HNYD18642
P0172: Fuel System Too Lean (Bank 1). ... code p0303 #3 misfire, found plug fouled replaced all 6. a month later came in with p0172 fuel system rich found egr open at idle replaced egr valve. a week later came back po172 again very rough idle not a misfire almost like a vacuum leak but didn't find...
June 27, 2005
1999 Plymouth Breeze 2.4L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1P3EJ46X6X
P0172: Fuel System Rich. Hey everyone, The breeze came in with a broken timing belt, We sent the head out and had it reworked with a complete valve job. So i'm not looking for a bent valve problem. When we started it, At idle it ran rough. No check engine lights at the time. Customer ...
June 27, 2005