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± 01 S6M6AAGK72100090505FAAT00 − − − − − − DTC P0505: YES NO YES NO YES NO 11-326 Idle Control System DTC Troubleshooting A Idle Control System Malfunction (2002-2003 models) NOTE: • Information marked with 1 applies to K20A3 engine; 2 applies to K20A2 engine. • If DTC P1519 is stored at the same time as DTC P0505, troubleshooting DTC P1519 first, then recheck for 1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the 2. Check the engine speed at idle without load conditions: headlights, blower fan, rear defogger, Intermittent failure, system is OK at this time. If the idle speed is less than 600 (650) rpm, go to step 3; if it’s 700 (750) rpm or higher, go to step 4. 3. Disconnect the idle air control (IAC) valve 3P connector. Check the idle speed with a different load condition (electrical, A/C, gear position, P/S, etc.) Replace the IAC valve (see page 11-412). 4. Turn the ignition switch OFF. 5. Remove the air intake duct from the throttle body. 6. Start the engine, and let it idle. 7. Put your fingers on the lower port (A) in the throttle body. Check the idle speed with a different load condition (electrical, A/C, gear position, P/S, etc.) Check for vacuum leaks at these parts. • PCV valve 1 2 1 2 Is the engine r unning at 650 ( 7 00) 50 r pm? Does the engine speed incr ease or f luctuate? Does the engine speed dr op below 7 00 ( 7 50) r pm? 1 2 1 2 05/06/27 17:40:23 61S6M040_110_0326 |