P0174 Diagnostic Trouble Code Discussion for October 2012
Fuel System Lean (Bank 2)
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| Help Request | Posted | |
| 2001 Ford F-150 Lariat 5.4L Poor Idle Quality, Surge, MIL Lamp on VIN: 1FTRX18L61 P0174: lean fuel trim. ... coolant leak near cyl 1 at crossover (towed in). Vehicle sets p0171 and p0174 after repairs. Fuel trims are high at idle -AND- cruise. Tested fuel pressure, volume and quality-OK. Customer reports no symptoms prior to coolant leak repair. While scanning ... |
October 03, 2012 | |
| 2000 Ford F-150 Lightning 5.4L MIL Lamp on, Lean VIN: 2FTZF0730Y P0174: System too lean bank 2. ... too lean bank 1, p0401 insufficient egr detected & p1260 theft detected. Dpfe was no good, which fixed p0401. Then reset kam. Truck came back 2 weeks later w/ p0171, so we replaced b1s1 ho2 sensor. 2 weeks later truck came back w/ p0171 & p0174. We... |
October 08, 2012 | |
| 2003 Chevrolet Express 2500 6.0L Cuts out, Stall VIN: 1GCGG25U63 P0174: Fuel Trim System Lean (Bank 2). The customer has complained that the engine cuts out at idle upon stopping in traffic. It restarts immediately and can cut out before the traffic light turns green but not always. It can cut out this way several times in a trip. I finally got it to act up on m... |
October 10, 2012 | |
| 2003 Chevrolet Express 2500 6.0L Cuts out, Stall VIN: 1GCGG25U63 P0174: Fuel Trim System Lean (Bank 2). The customer has complained that the engine cuts out at idle upon stopping in traffic. It restarts immediately and can cut out before the traffic light turns green but not always. It can cut out this way several times in a trip. I finally got it to act up on m... |
October 11, 2012 | |
| 2002 Ford F-150 XL 4.2L Surge, Poor Fuel Economy, MIL Lamp on VIN: 1FTRX07232 P0174: Lean bank 2. Vehicle came in running rough at times with lean codes. Customer had already installed new upsteam o2s, maf, iac valve and intake gaskets with new bolts/isolaters. STFT both banks max out to +33%, at idle and no change off idle(1500rpm+), indicating no vacuum ... |
October 17, 2012 | |
| 2002 Ford F-150 XL 4.2L MIL Lamp on VIN: 1FTRF17202 P0174: Lean condition. This truck keeps throwing P0171 & 174 codes.HELP! |
October 30, 2012 |
