DTC C1219 Mitshubishi

Description

Engine started, battery voltage must be at least 11.5v, all electrical components must be off, the ground between the engine and the chassis must be well connected, the exhaust system must be properly sealed between the catalytic converter and the cylinder head, the coolant temperature must be 80 degrees Celsius, and the oxygen sensor heater for oxygen sensor before the catalytic converter must be properly functioning. The DME detected the HO2S signal remained in a high state. The resistance is out of limits. The engine speed is less than 7008rpm (6208 for A T) and the exhaust temperatures are between 350.006 and 649.995 degrees Celsius. Note: The HO2S signal circuit may be shorted to the heater power circuit due to tracking inside of the HO2S connector. Remove the connector and visually inspect the connector for signs of oil or water.