EG–391 ENGINE – 2JZ–GE ENGINE TROUBLESHOOTING Trouble Area | Malfunction Indicator Lamp*1 | Memory*2 | See page Normal Mode | Test Mode • Open or short in engine coolant temp. sensor circuit • Engine coolant temp. sensor • ECM ON | ON | ○ | EG–424 • Open or short in intake air temp. sensor circuit • Intake air temp. sensor • ECM ON | ON | ○ | EG–426 • Open or short in (main heated*3) oxygen sensor circuit • (Main heated*3) oxygen sensor • Ignition system • ECM • Open or short in injector circuit • Fuel line pressure (injector leak, blockage) • Mechanical system malfunction (skipping teeth of timing belt) • Ignition system • Compression pressure (foreign object caught in valve) • Volume air flow meter (air intake) • ECM ON | ON | ○ | EG–428 • Open or short in injector circuit • Fuel line pressure (injector leak, blockage) • Mechanical system malfunction (skipping teeth of timing belt) • Ignition system • Compression pressure (foreign object caught in valve) • Volume air flow meter (air intake) • ECM *1, 2, 3: See page EG–396.