TSRM/MK2 Supra/Repair Manual
Repair ManualWiring Diagrams
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EC/Emission Control Systems14 / 16
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EMISSION CONTROL SYSTEMS — Exhaust Gas Recirculation (EGR) System — MK2 Supra Emission Control Systems, page 14
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EC-14 EMISSION CONTROL SYSTEMS — Exhaust Gas Recirculation (EGR) System 2. CHECK FOR SHORT CIRCUIT Using an ohmmeter, check that there is no continuity between the terminals and the VSV body. If there is continuity, replace the VSV. 3. CHECK FOR OPEN CIRCUIT Using an ohmmeter, measure the resistance between the terminals. Specified resistance: 38 — 44 Ω at 20°C (68°F) If the resistance is not within specification, replace the VSV. INSPECTION OF EGR VALVE 1. REMOVE EGR VALVE Check the valve for sticking and heavy carbon deposits. If a problem is found, replace it. 2. INSTALL EGR VALVE WITH NEW GASKET INSPECTION OF WATER TEMP. SENSOR (See page FI-73)