{"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":47,"pages_in_section":105,"title":"Inspection Procedure","section_header":"Engine — 2JZ-GE Engine Troubleshooting","ocr_text":"EG–427\nENGINE – 2JZ–GE ENGINE TROUBLESHOOTING\n\nINSPECTION PROCEDURE\nHINT: If diagnostic trouble codes \"22\" (engine coolant temperature sensor circuit), \"24\" (intake air temperature\n      sensor circuit) and \"41\" (throttle position sensor circuit) are output simultaneously, E2 (sensor ground)\n      may be open.\n\n1   Check voltage between terminals THA and E2 of engine control module con–\n    nector.\n\nON\nSST\nECM\n(B) 45,\n65\nTHA\nBE6653\nFI6496\nE2\n\nP   (1) Connect SST (check harness \"A\").\n        (See page EG–404)\n        SST 09990–01000\n    (2) Turn ignition switch ON.\n\nC   Measure voltage between terminals THW and E2 of en-\n    gine control module connector.\n\nOK\nIntake air temp.\n°C (°F)          Voltage\n20 (68)          0.5 – 3.4 V\n60 (140)         0.2 – 1.0 V\n\nNG\n\nOK   Check for intermittent problems.\n     (See page EG–399)\n\n2   Check intake air temp. sensor.\n\nVolume Air Flow\nMeter\n\n2   1\nFI6437\n\nP   Disconnect the volume air flow meter connector.\n\nC   Measure voltage between terminals 1 and 2 of volume\n    air flow meter connector.\n\nOK  Resistance is within Acceptable Zone on chart.\n\nResistance kΩ\n30\n20\n10\n6\n3\n2\n1\n0.6\n0.5\n0.3\n0.2\n0.1\n\nAcceptable\n\nIntake air temp.\n°C (°F)          Resistance\n20 (68)          2 – 3 kΩ\n60 (14)          0.4 – 0.7 kΩ\n\n-20  0  30  40  80  80  100\n(-4) (32)(68)(104)(140)(176)(212)  Temp. °C (°F)\n\nOK\n\nNG   Replace intake air temp. sensor (Replace vol-\n     ume air flow meter).\n\n3   Check for open and short in harness and connector between engine control\n    module and intake air temp. sensor (See page IN–30).\n\nOK\n\nNG   Repair or replace harness or connector.\n\nCheck and replace engine control 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