Fuel System Monitor

DTC Description / Detecting Condition / Confirmation Procedure

P0171 Refer to [DTC P0171: Fuel Trim Malfunction Bank 1 (Too Lean)].
P0172 Refer to [DTC P0172: Fuel Trim Malfunction Bank 1 (Too Rich)].
P0174 Refer to [DTC P0174: Fuel Trim Malfunction Bank 2 (Too Lean)].
P0175 Refer to [DTC P0175: Fuel Trim Malfunction Bank 2 (Too Rich)].
P1171 Refer to [DTC P1171: Lambda Controller Limit Malfunction Bank 1 (Too Rich)].
P1172 Refer to [DTC P1172: Lambda Controller Limit Malfunction Bank 1 (Too Lean)].
P1174 Refer to [DTC P1174: Lambda Controller Limit Malfunction Bank 2 (Too Rich)].
P1175 Refer to [DTC P1175: Lambda Controller Limit Malfunction Bank 2 (Too Lean)].





Fuel System Lean Monitor





Fuel System Rich Monitor





Lambda Control Limit Diagnosis Monitor