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P0172 Diagnostic Trouble Code Discussion for November 2011

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
2009 Hyundai Accent GL 1.6L MIL Lamp on, subtractin fuel trim
P0172: sys. too rich bank1. Hi gang,This was off our used car lot,we got it@ auction 3 wks. ago,had ck. eng lite for fuel system too rich@ Idle=p2118,+ po172 Bank1 sys. too rich. Watched short + Long term fuel trims= Both long+short look good when cruising or accellerating,But when sitti...
November 01, 2011
2009 Hyundai Accent GL 1.6L MIL Lamp on, subtractin fuel trim
P0172: sys. too rich bank1. Hi gang,This was off our used car lot,we got it@ auction 3 wks. ago,had ck. eng lite for fuel system too rich@ Idle=p2118,+ po172 Bank1 sys. too rich. Watched short + Long term fuel trims= Both long+short look good when cruising or accellerating,But when sitti...
November 02, 2011
2010 Chevrolet Equinox LT 2.4L MIL Lamp on VIN: 2CNFLEEW9A
P0172: Fuel Trim System Rich. ... that is direct injected. It keeps setting a P0172 Rich code. Watching fuel trims with the GDS 2 (MDI) it is showing between -15 and -25 at all times (Idle or off idle). The low pressure fuel system is showing 50ish psi both desired and actual. The high pre...
November 03, 2011
1998 Ford Ranger Splash 3.0L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: 1FTZR15U0W
P0172: rich bank 1. Hey guys (& gals), this Ford is kicking our collective butts!! 3.0 V-6 running rich, verified with gas analyzer. Fuel regulator not leaking. Cannister purge okay (no change when line was clamped off). Tried MAF, no change (Napa reman & Ford reman). Eng...
November 03, 2011
1998 Ford Ranger Splash 3.0L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: 1FTZR15U0W
P0172: rich bank 1. Hey guys (& gals), this Ford is kicking our collective butts!! 3.0 V-6 running rich, verified with gas analyzer. Fuel regulator not leaking. Cannister purge okay (no change when line was clamped off). Tried MAF, no change (Napa reman & Ford reman). Eng...
November 07, 2011
1998 Buick Century Custom 3.1L Poor Fuel Economy, MIL Lamp on
P0172: Fuel System Rich. ... cetury,3.1 engine, has code p0172 (rich) and code p0446 (evap vent problem) it gets bad fuel milage, i have seen on here that a bad ftp sensor can cause p0446 (it already has a new vent selonid) ftp pid is at 4.3 volts koeo, fuel trim at idle is -25, i can...
November 16, 2011
2001 Toyota Camry CE 2.2L Excessive Emissions, MIL Lamp on VIN: 4T1BG22K31
P0172: Fuel System Too Rich (Bank 1). ... light on, P0172, and P0420. The spark plugs had not been replaced and they were wore out. Had them replaced and also install a cat. Drove the car for a test drive no problem, after the car sit in the lot for couple of hours and we had to move it the check ...
November 19, 2011
1998 Buick Century Custom 3.1L Poor Fuel Economy, MIL Lamp on
P0172: Fuel System Rich. ... cetury,3.1 engine, has code p0172 (rich) and code p0446 (evap vent problem) it gets bad fuel milage, i have seen on here that a bad ftp sensor can cause p0446 (it already has a new vent selonid) ftp pid is at 4.3 volts koeo, fuel trim at idle is -25, i can...
November 27, 2011