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P0174 Diagnostic Trouble Code Discussion for July 2012

Fuel System Lean (Bank 2)

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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
2000 Ford E-350 Econoline 5.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FDWE35L9Y
P0174: Lean. ... damage to the vacuum lines to the HVAC system and part of the heater plenium box had been chewed to the point outside air was coming throught the firewall. The wires going to the knock sensor had been chewed. A young tech in our shop replaced the vacuum li...
July 05, 2012
1997 Mercury Grand Marquis LS 4.6L MIL Lamp on VIN: 2MELM75W0V
P0174: Lean bank 25. Vehicle came in with lean codes. Replaced maf sensor and air filter due to trash on maf. Vehicle came back about fifty miles later with same codes plus maf intermittent code. Element on maf was dirty again. Cleaned, reset kam and test drive. Ok. Also smoked in...
July 05, 2012
2003 Infiniti G35 3.5L MIL Lamp on VIN: JNKCV51E93
P0174: Fuel Trim Lean (Bank 2). ... with this Infiniti. Approx. 2 months ago this G35 came in with DTC P0171 and a slight hesitation. Ended up replacing the MAF. Last week the vehicle came back with DTC's P0171 & P0174. Checked the freeze frame data and found the codes set while driving ...
July 25, 2012
2002 BMW X5 3.0i 3.0L No Start, Poor Idle Quality VIN: 5UXFA53532
P0174: System lean bank 2. I have a question about fuel transfer in the fuel tank of this X5 3.0. It came in as a vehicle that either ran really bad or did not start at all, depending on its mood that day. The air boot was torn, so we replaced it. The car actually ran worse after that. ...
July 27, 2012
1999 Jaguar XK8 4.0L MIL Lamp on VIN: SAJGX2041X
P0174: Lean system bank 2. ... info. SES light is on p0171, p0174 lean codes. Long term 12-15% at idle, 19.62% maxed out at cruise and loaded both banks. Smoked intake system fixed every visable leak and there were several, no change. Cleaned MAF no change and then replaced, no change. ...
July 30, 2012