DTC P0125: Insufficient Coolant Temperature For Closed Loop Fuel Control (Except CALIF. Emissions): Notes
CAUTION:
If ECM replacement is instructed in following testing, always ensure ECM connectors and ground circuit are okay. If either are suspect, repair and repeat testing to confirm ECM malfunction.
NOTE:
Heated oxygen sensor No. 1 refers to oxygen sensor closest to engine block. Heated oxygen sensor No. 2 refers to oxygen sensor farthest from engine block.