I have Element ex 2003

DTC P0507: Idle Control System RPM Higher Than Expected

NOTE: If DTC P0511 is stored at the same time as DTC P0507, troubleshoot DTC P0511 first, then recheck for DTC P0507.

Turn the ignition switch ON (II).
Do the DTC CLEAR in the CLEAR MENU with the Honda PGM Tester or the HDS.
Start the engine. Hold the engine speed at 3,000 rpm with no load (in Park or neutral) until the radiator fan comes on, then let it idle for 20 seconds.
Monitor the OBD STATUS for DTC P0507 in the DTCs MENU with the Honda PGM Tester or the HDS.

Does the screen indicate FAILED?

YES - Go to step 5.
NO - If the screen indicates PASSED, intermittent failure, system is OK at this time. If the screen indicates EXECUTING, keep the engine idling until a result comes on. If the screen indicates Out of CONDITION, recheck with a different load condition (electrical, A/C, gear position, etc.), Then go to step 3.

Do the DTC CLEAR in the CLEAR MENU with the Honda PGM Tester or the HDS.
Do the IACV TEST in the INSPECTION MENU with the Honda PGM Tester or the HDS.

Is the result OK?

YES - Check the following parts for vacuum leaks, then go to step 8.

PCV valve
PCV hose
EVAP canister purge valve
Throttle body
Brake booster hose

NO - Go to step 7.

Turn the ignition switch OFF.
Replace the IAC valve.
Turn the ignition switch ON (II).
Do the ECM/PCM RESET in the CLEAR MENU with the Honda PGM Tester or the HDS.
Do the ECM/PCM idle learn procedure.
Start the engine. Hold the engine speed at 3,000 rpm with no load (in Park or neutral) until the radiator fan comes on, then let it idle for 20 seconds.
Check for Temporary DTCs or DTCs in the DTCs MENU with the Honda PGM Tester or the HDS.

Are any Temporary DTCs or DTCs indicated?

YES - If DTC P0507 is indicated, check for poor connections or loose terminals at the IAC valve and the ECM/PCM, then go to step 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTCs troubleshooting.
NO - Go to step 14.

Monitor the OBD STATUS for DTC P0507 in the DTCs MENU with the Honda PGM Tester or the HDS.

Does the screen indicate PASSED?

YES - Troubleshooting is complete.
NO - If the screen indicates FAILED, check for poor connections or loose terminals at the IAC valve and the ECM/PCM, then go to step 1. If the screen indicates EXECUTING, keep the engine idling until a result comes on. If the screen indicates Out of CONDITION, recheck with a different load condition (electrical, A/C, gear position, etc.), Then go to step 12.