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EMISSION CONTROL <MPI> ENGINE AND EMISSION CONTROL 17-19 When engine is cold ° C or less) When engine is hot ° C or higher) <4G69> 1. Disconnect the vacuum hose (between purge control solenoid valve and intake maniford) from 2. Plug the vacuum hose. 53 kPa, and check the condition of the vacuum. When engine is cold ° C or less) When engine is hot ° C or higher) PURGE PORT VACUUM CHECK M1173001500188 <4G63> 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). 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. Engine condition Normal condition At idle Vacuum is maintained. 3,000 r/min Engine condition Normal condition At idle Vacuum is maintained. 3,000 r/min (within 3 Vacuum will leak. Engine condition Normal condition At idle Vacuum is maintained. 3,000 r/min AK302831 Plug Vacuum hose AB Engine condition Normal condition At idle Vacuum is maintained. 3,000 r/min (within 3 Vacuum will leak. AK201225 Vacuum hose Plug AD AK100011 AC Vac- Engine speed (r/min) |