{"model":"mk3","model_name":"MK3 Supra","vehicle":"Toyota Supra A70 (1986.5–1992, 7M-GE / 7M-GTE)","document":"Repair Manual","section":"FI","section_name":"EFI System","page":38,"pages_in_section":126,"title":"EFI System","section_header":"EFI System — Troubleshooting with Volt/Ohmmeter (7M-GE)","ocr_text":"FI-38\n\nEFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE)\n\nNo. | Terminals | Trouble | Condition | STD Voltage\n--- | --------- | ------- | --------- | -----------\n    | VC - E2   |         | Ignition  | —\n    | VS - E2   |         | SW ON     | 3.7 ~ 4.3 V\n3   | VS - E2   | No voltage | — | Measuring plate fully closed | 0.2 ~ 0.5 V\n    | VS - E2   |         | Idling    | —\n    | VS - E2   |         | 3,000 rpm | 2.3 ~ 2.8 V\n    |           |         |           | 1.0 ~ 2.0 V\n\n[DIAGRAM showing ECU connections with Air Flow Meter, terminals E2, VS, VC, and connection to +B (B81) and E1]\n\nFI1263\n\n[FLOWCHART showing troubleshooting steps:]\n\n1. There is no voltage between ECU terminals VC or VS and E2. (IG SW ON)\n\n2. Check that there is voltage between ECU terminal +B (B81) and body ground. (IG SW ON)\n   OK | NO\n      | Refer to No. 1.\n      | (See page FI-35)\n\n   Check wiring between ECU terminal E1 and body ground.\n   OK | BAD\n      | Repair or replace.\n\n3. Check air flow meter.\n   (See page FI-94)\n   BAD | OK\n   Replace air flow | Check wiring between ECU and\n   meter.           | air flow meter.\n                    | OK | BAD\n                    | Try another ECU. | Repair or replace.\n\n[DIAGRAM 1 showing ECU with Voltmeter connection to VS, VC, E2]\nFI1244\n\n[DIAGRAM 2 showing ECU with Voltmeter connection to +B1 and ground]\nFI0513\n\n[DIAGRAM 3 showing Air Flow Meter with Ohmmeter connection to VC, E2, VS]\nFI1283","image":"https://tsrm.sasquatchvc.com/images/mk3/FI/FI_038.png","url":"https://tsrm.sasquatchvc.com/mk3/tsrm/FI/38","prev":{"page":37,"url":"https://tsrm.sasquatchvc.com/mk3/tsrm/FI/37","api":"https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/37"},"next":{"page":39,"url":"https://tsrm.sasquatchvc.com/mk3/tsrm/FI/39","api":"https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/39"},"section_url":"https://tsrm.sasquatchvc.com/mk3/tsrm/FI","section_api_pages":["https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/1","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/2","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/3","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/4","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/5","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/6","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/7","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/8","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/9","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/10","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/11","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/12","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/13","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/14","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/15","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/16","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/17","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/18","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/19","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/20","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/21","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/22","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/23","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/24","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/25","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/26","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/27","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/28","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/29","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/30","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/31","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/32","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/33","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/34","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/35","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/36","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/37","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/38","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/39","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/40","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/41","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/42","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/43","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/44","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/45","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/46","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/47","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/48","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/49","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/50","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/51","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/52","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/53","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/54","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/55","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/56","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/57","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/58","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/59","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/60","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/61","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/62","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/63","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/64","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/65","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/66","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/67","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/68","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/69","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/70","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/71","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/72","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/73","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/74","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/75","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/76","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/77","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/78","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/79","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/80","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/81","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/82","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/83","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/84","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/85","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/86","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/87","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/88","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/89","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/90","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/91","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/92","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/93","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/94","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/95","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/96","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/97","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/98","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/99","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/100","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/101","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/102","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/103","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/104","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/105","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/106","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/107","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/108","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/109","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/110","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/111","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/112","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/113","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/114","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/115","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/116","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/117","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/118","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/119","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/120","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/121","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/122","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/123","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/124","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/125","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/126"],"note":"OCR transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}