{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Repair Manual","section":"SFGE","section_name":"SFI System 2JZ-GE","page":33,"pages_in_section":71,"title":"Throttle Body On-Vehicle Inspection","section_header":"Engine — SFI System (2JZ-GE)","ocr_text":"EG–219\nENGINE – SFI SYSTEM (2JZ–GE)\n\nTHROTTLE BODY\nON–VEHICLE INSPECTION\nThrottle Body\nINSPECT THROTTLE BODY\n(a) Check that the throttle linkage moves smoothly.\n\nP12001\n\n(b) Check the vacuum at each port.\n• Start the engine.\n• Check the vacuum with your finger.\n\nPort name | At idle | At 3,000 rpm\nP | No vacuum | Vacuum\nE | No vacuum | Vacuum\nR | No vacuum | Vacuum\n\nP13002\n\nVacuum\nDisconnect\nFeeler Gauge\n\nP11461\n\nOhmmeter\nE2\nIDL\nVTA\nVC\n\nP11462\n\nThrottle Position Sensor\nINSPECT THROTTLE POSITION SENSOR\n(a) Disconnect the throttle position sensor connector.\n(b) Disconnect the throttle opener vacuum hose from the throttle body.\n(c) Apply vacuum to the throttle opener.\n(d) Insert a feeler gauge between the throttle stop screw and stop lever.\n\n(e) Using an ohmmeter, measure the resistance between each terminal.\n\nClearance between Lever and stop screw | Between terminals | Resistance\n0 mm (0 in.) | VTA–E2 | 0.34–6.3 kΩ\n0.40 mm (0.016 in.) | IDL–E2 | 0.5 kΩ or less\n0.60 mm (0.024 in.) | IDL–E2 | Infinity\nThrottle valve fully Open | VTA–E2 | 2.4–11.2 kΩ\n– | VC–E2 | 3.1–7.2 kΩ\n\n(f) Reconnect the throttle position sensor connector.\n(g) Reconnect the throttle opener vacuum hose to the throttle 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transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}