P0174 Diagnostic Trouble Code Discussion for November 2021
Fuel System Lean (Bank 2)
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| Help Request | Posted | |
| 2007 Chevrolet Silverado 1500 Classic WT 4.3L Poor Idle Quality, Hesitation, Cuts out, high trims VIN: 1GCEC14X27 P0174: Lean bank 2. Got a tough one. Lean codes for both banks. Rough idle intermittently, extended crank, intermittently and intermittently engine bogs down and no throttle response, briefly. Noted trims max out high under load, but trims normal at idle or cruise. Every time... |
November 02, 2021 | |
| 2006 Toyota Solara SLE 3.3L MIL Lamp on VIN: 4T1FA38P96 P0174: Fuel System Too Lean (Bank 2). Original scan P0171, 0174 & 0430. My mistake was, being busy, I told customer common failure was MAF- without any diagnostics. They requested MAF. Car is back- 171/174. LTFT 25-30%, STFT was negative numbers- vacuum leak thought I. A road test did not ... |
November 09, 2021 | |
| 2007 Chevrolet Silverado 1500 Classic WT 4.3L Poor Idle Quality, Hesitation, Cuts out, high trims VIN: 1GCEC14X27 P0174: Lean bank 2. Got a tough one. Lean codes for both banks. Rough idle intermittently, extended crank, intermittently and intermittently engine bogs down and no throttle response, briefly. Noted trims max out high under load, but trims normal at idle or cruise. Every time... |
November 15, 2021 | |
| 2010 Chevrolet Silverado 1500 LT 4.8L MIL Lamp on VIN: 3GCRKSEA6A P0174: bank 2 system lean. Very frustrating...the trims only do this at an idle or a cruise at speed. as soon as the gas pedal is touche they drop from 30% down to 0, when I reset the alcohol I also reset the fuel trims, when I changed the MAF I reset the trims again no change they ... |
November 20, 2021 | |
| 2010 Chevrolet Silverado 1500 LT 4.8L MIL Lamp on VIN: 3GCRKSEA6A P0174: bank 2 system lean. Very frustrating...the trims only do this at an idle or a cruise at speed. as soon as the gas pedal is touche they drop from 30% down to 0, when I reset the alcohol I also reset the fuel trims, when I changed the MAF I reset the trims again no change they ... |
November 23, 2021 |
