{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Repair Manual","section":"TGE","section_name":"Troubleshooting 2JZ-GE","page":53,"pages_in_section":105,"title":"Check each item found to be a possible cause of problem.","section_header":"Engine — 2JZ-GE Engine Troubleshooting","ocr_text":"EG–433\n\nENGINE – 2JZ-GE ENGINE TROUBLESHOOTING\n\n7    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\nin 1 .  The numbers in the table below show the order in which the checks should be done.\n\n(Main heated*)\noxygen sensor signal\nfrom either side\ncontinues at 5.0 V\n\n(Main heated*)\noxygen sensor signal\nfrom both sides\ncontinues at 5.0 V\n\n(Main heated*)\noxygen sensor\nsignals from both\nsides are normal\n\nPossible Cause\n\nSee page\n\n1\n                                        7        Injector circuit        EG–4\n                                        3        Misfire                IG–4\n2                                       4        Valve timing           EG–33\n                                        1        Air leakage            EG–19\n             1                          2        Fuel system            EG–457\n             4                          8        Characteristics deviation\n                                                 in volume air flow meter    EG–438\n             2                          5        Characteristics deviation\n                                                 engine coolant temp. sensor  EG–424\n             3                          6        Characteristics deviation\n                                                 in intake air temp. sensor   EG–426\n\nOK                          NG    Repair or replace.\n\n8    Check compression (See page EG–9).\n\nOK                          NG    Repair or replace.\n\n9    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 module.\n\n*: Only for California specification 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transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}