DTC P0174 Or DTC P0175: Condition

DTC P0174 is set when ECM detects that Bank 2 short term fuel trim exceeding 15 percent, long term fuel trim exceeding 20 percent or total fuel trim is more than 43 percent.

DTC P0175 is set when ECM detects that Bank 2 short term fuel trim is less than -11 percent, long term fuel trim less than -11 percent or total fuel trim less than -30 percent. MIL is illuminated when ECM detects malfunction during 2 consecutive drive cycles.