{"model":"mk2","model_name":"MK2 Supra","vehicle":"Toyota Supra A60 (1982–1986, 5M-GE)","document":"Repair Manual","section":"FI","section_name":"EFI System","page":19,"pages_in_section":80,"title":"Symptom — Muffler Explosion (After Fire) -Rich Fuel Mixture-Misfire","section_header":"EFI System — Troubleshooting","ocr_text":"SYMPTOM — MUFFLER EXPLOSION (AFTER FIRE)\n-Rich Fuel Mixture-Misfire\n\nCHECK DIAGNOSIS SYSTEM\nCheck for output of diagnostic code.\n(See page FI-22)\n\nNormal code\n\nCHECK IGNITION TIMING\n1. Short both terminals of the\n   check connector.\n2. Check ignition timing.\n   STD:   10° BTDC\n   (w/short terminals of the\n   check connector)\n\nOK\n\nCHECK COLD START INJECTOR\n(See page FI-49)\n\nOK\n\nCHECK INJECTORS\n\nOK\n\nCHECK SPARK PLUGS\nMax. allowable gap:   1.4 mm (0.055 in.)\nPrecaution: Never attempt to adjust gap\n           on used platinum tipped spark plug.\n— Note —\nCheck compression pressure if necessary.\n(See page EM-6)\n\nOK\n\nCHECK EFI ELECTRONIC CIRCUIT\nUSING VOLT/OHMMETER\n\nMalfunction\ncode(s)\n\nDiagnostic code(s) (See page FI-25)\n\nNO\n\nIgnition system (See page IG-2)\n\nBAD\n\n1. Cold start injector\n2. Start injector time switch\n   (See page FI-71)\n\nBAD\n\nInjectors — leakage\n\nNO\n\n1. Spark plug\n2. Compression pressure\n   Limit:  9.0 kgf/cm² (128 psi, 883 kPa)\n          at 250 rpm\n\nBAD\n\n1. Throttle position sensor\n2. Injection signal\n   (1)  Injector wiring\n   (2)  Resistor\n   (3)  ECU\n3. Oxygen sensor","image":"https://tsrm.sasquatchvc.com/images/mk2/FI/FI_019.png","url":"https://tsrm.sasquatchvc.com/mk2/tsrm/FI/19","prev":{"page":18,"url":"https://tsrm.sasquatchvc.com/mk2/tsrm/FI/18","api":"https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/18"},"next":{"page":20,"url":"https://tsrm.sasquatchvc.com/mk2/tsrm/FI/20","api":"https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/20"},"section_url":"https://tsrm.sasquatchvc.com/mk2/tsrm/FI","section_api_pages":["https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/1","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/2","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/3","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/4","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/5","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/6","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/7","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/8","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/9","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/10","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/11","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/12","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/13","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/14","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/15","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/16","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/17","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/18","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/19","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/20","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/21","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/22","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/23","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/24","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/25","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/26","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/27","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/28","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/29","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/30","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/31","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/32","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/33","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/34","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/35","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/36","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/37","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/38","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/39","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/40","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/41","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/42","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/43","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/44","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/45","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/46","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/47","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/48","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/49","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/50","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/51","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/52","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/53","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/54","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/55","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/56","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/57","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/58","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/59","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/60","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/61","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/62","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/63","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/64","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/65","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/66","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/67","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/68","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/69","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/70","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/71","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/72","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/73","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/74","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/75","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/76","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/77","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/78","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/79","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/FI/80"],"note":"OCR transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}