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P0174 Diagnostic Trouble Code Discussion for June 2018

Fuel System Lean (Bank 2)


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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
2003 Chevrolet Silverado 1500 SS 6.0L Poor Idle Quality, Hesitation, Cuts out, Stall, Poor Fuel Economy, MIL Lamp on VIN: 2GCEK19N73
P0174: Fuel Trim System Lean (Bank 2). ... code P0154 and running at 2,000 RPMs it sets P0174. Scan tool data at idle say Bank 2 Sensor 1 stays at 440 MV to 525 MV. Bank 1 Sensor 1 will switch. Also Short Term FT. on both Banks stay at 0.0% -- Long Term FT on both banks stay at -3.9% --- At 2,0...
June 20, 2018
2006 Lexus GX470 4.7L Poor Idle Quality, Poor Idle Quality VIN: JTJBT20X66
P0174: Fuel System Too Lean (Bank 2). ... a check engine light on with code p0174 inspected the car and decided to replace the bank 2 front oxygen sensor when the issue happens it AFR sensor would go nuts on bank two, what happens is that after driving the car and coming to idle the fuel trim...
June 20, 2018
1997 Ford Expedition Eddie Bauer 5.4L Poor Idle Quality VIN: 1FMFU18L4V
P0174: testing and results. So here's what we've got... after its warmed up this thing starts and runs great for 30 seconds to 1 min and then drops out of closed loop and runs like crap and occasionally dies. when this happens the only pid correlation i see is stft drops to 0, loop g...
June 22, 2018
1998 Mazda B4000 SE 4.0L MIL Lamp on VIN: 4F4ZR17X3W
P0174: Adaptive Fuel Trim Too Lean (Bank 2). ... p0171, p0174 codes. initially came in for stated codes and found upper intake plenum (plastic) leaking moderately, we replaced assembly and observed data stream and saw pids dropping for ltft. sent vehicle down the road, c...
June 26, 2018