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EMISSION CONTROL <MPI> ENGINE AND EMISSION CONTROL 17-11 PURGE PORT VACUUM CHECK M1173001500252 AK304231AB Red stripe Throttle body 1. Disconnect the vacuum hose (red stripe) from the throttle body and connect a hand vacuum pump to 2. Plug the vacuum hose (red stripe). AK100011 AC Vac- Engine speed (r/min) 3. Start the engine. generated regardless of the engine speed. 5. If no negative pressure is generated, the port is probably blocked and should be cleaned. PURGE CONTROL SOLENOID VALVE M1173001700405 NOTE: When disconnecting the vacuum hose, AK100012 AC Battery A 1. Disconnect the vacuum hose from the solenoid valve. 2. Disconnect the harness connector. solenoid valve (refer to the illustration at left). 4. Check airtightness by applying negative pressure with voltage applied directly from the battery to the Battery voltage Normal condition Applied Negative pressure Not applied Negative pressure AK100013 5. Measure the resistance between the terminals of the solenoid valve. − 34 Ω (at 20°C) |