{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Repair Manual","section":"TGTE","section_name":"Troubleshooting 2JZ-GTE","page":52,"pages_in_section":113,"title":"Troubleshooting 2JZ-GTE","section_header":"Engine — 2JZ-GTE Engine Troubleshooting","ocr_text":"EG–538\nENGINE – 2JZ–GTE ENGINE TROUBLESHOOTING\n\n3  Check for open and short in harness and connector between engine\n   control module and main heated oxygen sensor, engine control module\n   and data link connector 1 (See page IN–30).\n\nOK                              NG  Repair or replace harness or connector.\n\n4  Check each item found to be a possible cause of problem.\n\nCheck each circuit found to be a possible cause of trouble according to the results of the check in 1\nor 2 . The numbers int he table below show the order in which the checks should be done.\n\nMain heater oxygen sensor signal\ncontinues at 0 V          Possible Cause                    See page\n\n1    Faulty sensor installation               –\n2    Air leakage                              EG–261\n3    Misfire                                  IG–21\n4    Fuel system                              EG–568\n5    Injector circuit                         EG–583\n6    Characteristics deviation\n     in engine coolant temp. sensor           EG–530\n7    Characteristics deviation\n     in intake air temp. sensor               EG–532\n8    Characteristics deviation in mass\n     air flow meter                           EG–544\n9    Valve timing                             EG–33\n\nOK                         NG  Repair or replace.\n\n5  Check compression (See page EG–9).\n\nOK                         NG  Repair or replace.\n\n6  Does malfunction disappear when a good main heated oxygen sensor is\n   installed?\n\nNG                              YES  Replace main heated oxygen sensor.\n\nCheck and replace engine control 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