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DIAGNOSTIC PROCEDURE INSPECTION START EGR CONTROL OPERATION CHECK OVERALL FUNCTION. ciently. (Air conditioner is “OFF”). 2. Perform diagnostic test mode II (Self-diagnostic results). 3. Make sure that EGR diaphragm moves up and down (Use your finger At idle: Spring does not move. Racing engine from idle to 2800 Spring moves up and down. NG E OK INSPECTION END CHECK VACUUM SOURCES TO EGR valve. 2. Make sure that vacuum exists under the following conditions: At idle: Vacuum should not exist. Racing engine from idle to 2800 Vacuum should exist. NG E OK CHECK COMPONENTS NG Replace malfunctioning p A NEF433 EGR NEF434 EGR H H H H TROUBLE DIAGNOSES 16 CD20T EGRC-Solenoid Valve (Cont’d) EC-133 |