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P0174 Diagnostic Trouble Code Discussion for August 2008

Fuel System Lean (Bank 2)


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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
1996 Ford Taurus LX 3.0L MIL Lamp on VIN: 1FALP53S7T
P0174: system lean bank 2. Ok, this car came in with an overheat problem as the primary concern so we fixed that and recommended some other things such as diag the check engine light and find an exhaust leak. So I started with the check engine light. Went through all the normal checks a...
August 01, 2008
2000 Ford Excursion XLT 5.4L Hesitation, Surge, MIL Lamp on VIN: 1FMNU41L4Y
P0174: system too lean - B2. ... this one. Vehicle came in with loss of power complaint on heavy acceleration. (almost feels like a restricted exhaust system). Also complaint of excessive pinging on light acceleration. Had 2 lean running codes - P0171 & P0174. Replaced air & fuel ...
August 02, 2008
2001 Chevrolet Silverado 1500 4.8L Surge VIN: 2GCEC19V11
P0174: Fuel Trim System Lean (Bank 2). We have a surging 4.8 (looks alot like a 5.3) here that has a bad surging symptom. Fuel trims are high, smoked intake to no avail but replaced intake gaskets, cleaned throttle body and IAC, then replaced IAC to no avail. Fuel guage drops to empty erratically b...
August 04, 2008
2001 Pontiac Firebird Formula 5.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 2G2FV22G61
P0174: Fuel Trim System Lean (Bank 2). ... codes p0171, p0174, and p0306. cust had taken back to the place he bought it from many times and all they did was turn off the light and in the end told him he needed injectors. for cost sake he turned to the internet and purchased a set from who knows who...
August 05, 2008
2003 Mercury Sable LS 3.0L MIL Lamp on VIN: 1MEFM55S43
P0174: lean bank two. After replacing tps the car came in shortly for a lean code on both banks. I have removed all vacumm hoses and blocked every thing I can think of. I still have LTFT +25 @ idle and cruise. I replaced maf because i had 2.67 gps. No significant improvement, 2.89g...
August 06, 2008
1997 Lincoln Continental Spinmaker Edition 4.6L MIL Lamp on VIN: 1LNLM97V4V
P0174: Bank 2 Lean. ... Lincoln Contenental with a 4.6L V-8. Trouble codes P0171 and P0174 set (lean bank 1 and 2). I have found the problem, smoke tested intake and found both intake manifold runner controls leaking at the shafts. I have contacted Ford, and they say that the IMR...
August 07, 2008
1998 Acura TL 3.2L MIL Lamp on VIN: JH4UA3640W
P0174: Fuel System Too Lean (Bank 2). Hi: Vehicle in last week. P0171 and p0174 bank 1 and bank 2 lean. Repaired by other tech on my day off by cleaning top engine from suggestion of new svc mgr. Car coming back tomorrow (tue, aug 12th) for me to diag. I haven't done a thing to this but wanted so...
August 11, 2008
2002 Chevrolet Trailblazer LS 4.2L Stall, MIL Lamp on VIN: 1GNDS13S92
P0174: fuel system rich. Howdy Boys and Girls, This truck came in with a ce light complaint and oh, by the way it stalls sometimes he says. The fail records show that the crank/cam sensor codes occurred at the same time 889 miles ago. The code definitions say that the 335 and 336 code...
August 11, 2008
1998 Acura TL 3.2L MIL Lamp on VIN: JH4UA3640W
P0174: Fuel System Too Lean (Bank 2). Hi: Vehicle in last week. P0171 and p0174 bank 1 and bank 2 lean. Repaired by other tech on my day off by cleaning top engine from suggestion of new svc mgr. Car coming back tomorrow (tue, aug 12th) for me to diag. I haven't done a thing to this but wanted so...
August 13, 2008
2004 Ford F-150 FX4 5.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FTPW14594
P0174: . ... replaced the v.c.t.on the driver side head and the #6 plug and coil,went on a road test and we get the p0306 back and now a lean code p0174, we put an injecter in #6 and still get the p0306 and p0174 back. we have smoke tested ...
August 15, 2008
2002 Volkswagen Passat GLX 2.8L MIL Lamp on VIN: WVWRH63B62
P0174: bank 2 system lean. after driving the vehicle 20 miles the light return with same codes. took it back to dealer now they say the vacuum valve for the pcv system on back of intake needs to be replaced because it is sucking air. if there is any info i could get from you guys out th...
August 15, 2008
1999 Oldsmobile Aurora 4.0L Excessive Emissions, MIL Lamp on VIN: 1G3GR62C3X
P0174: Fuel Trim System Lean (Bank 2). car came in the first time lazy sensor expected replaced sensor, no change. bank one changes good bank 2 at idle sits at 4mv, if you take car off idle it will become active and does respond if i create a rich condition any help would be appreciated. also passe...
August 26, 2008
2001 Audi A6 Quattro Avant 2.8L Misfire, MIL Lamp on VIN: WAULH64B01
P0174: lean fuel trim on bank 2. ... slight hesitation on accel. The mil code P0174 (I believe Audi code 16558) came back in a couple days. I don't have a VAG scanner so I can't go too deep into the car. Can a O2 sensor cause this on #2 bank? Should I measure...
August 28, 2008
2000 Ford Excursion XLT 5.4L Hesitation, Surge, MIL Lamp on VIN: 1FMNU41L4Y
P0174: system too lean - B2. ... this one. Vehicle came in with loss of power complaint on heavy acceleration. (almost feels like a restricted exhaust system). Also complaint of excessive pinging on light acceleration. Had 2 lean running codes - P0171 & P0174. Replaced air & fuel ...
August 28, 2008
2005 Ford Freestyle SE 3.0L Poor Idle Quality, MIL Lamp on VIN: 1FMZK01175
P0174: o2 b2s1. Hello, Thanks in advance for any help offered. This van has a duratec 3.0, very low miles and never been wrecked. the CEL is on with a bank two lean code and a b2S1 code. The waveform this O2 is producing is a little choppy but otherwise OK except for the fact...
August 28, 2008