EG–432 ENGINE – 2JZ–GE ENGINE TROUBLESHOOTING 3 Check for open and short in harness and connector between engine control module and (main heated*) oxygen sensor, engine control module and data link connector 1 (see page IN–30). OK NG Repair or replace harness or connector. 4 Check each item found to be a possible cause of problem. Check each circuit found to be a possible cause of trouble according to the results of the check in 1 or 2 . The numbers in the table below show the order in which the checks should be done. (Main heated*) oxygen sensor signal from either side continues at 0 V | (Main heated*) oxygen sensor signal from both sides continues at 0 V | Possible Cause | See page 1 | | Faulty sensor installation | – 3 | | Injector circuit | EG–47 2 | 3 | Misfire | IG–4 4 | | Valve timing | EG–33 | 1 | Air leakage | EG–190 | 2 | Fuel system | EG–457 | 6 | Characteristics deviation in volume air flow meter | EG–438 | 4 | Characteristics deviation in engine coolant temp. sensor | EG–424 | 5 | Characteristics deviation in intake air temp. sensor | EG–426 OK NG Repair or replace. 5 Check compression (See page EG–9). OK NG Repair or replace. 6 Does malfunction disappear when a good (main heated*) oxygen sensor is installed? NG YES Replace (main heated*) oxygen sensor. Check and replace engine control module. *: Only for California specification vehicles