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P0174 Diagnostic Trouble Code Discussion for January 2020

Fuel System Lean (Bank 2)

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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
2004 Pontiac Bonneville GXP 4.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G2HZ54Y44
P0174: Fuel Trim System Lean (Bank 2). ... P0174 and P0300 stored. Started cold and found that even numbered cylinders misfired until vehicle went into closed loop, then smoothed out but lean exhaust on bank 2 remained (35+ on bank 2). Found intake duct boot torn and PCV tube cracked, replace...
January 16, 2020