QUESTION....

[b15gaL]

so i installed an intake on my 03 ser-spec v a few days ago..but my check engine light came on...i noticed that when its in idle the rpms are higher...its a little over 1000...and when i drive it and im at a light and just have it in 1st it revs to about 1500 on its own... my dad has the exact same car with the same intake but his never came on so we tried switching the air mass flow sensor to see if anything changes but it didnt.... any ideas of what else to check for???

[RED_DET]

Reset the ECU.

[pm_page6776]

If you have a P0507 code, perform an idle-air volume learn procedure to reset the idle.

[VMPhil]

From MySpecV.com

Before performing Idle Air Volume Learning, make sure that all of the following conditions are satisfied. Learning will be cancelled if any of the following conditions are missed for even a moment. ● Battery Voltage: More than 12.9V (At idle) ● Engine coolant temperature : 158-203°F ● For A/T vehicles: PNP (Park/Neutral Position) switch: ON M/T vehicles: Neutral switch: ON ● Electrical load switch: OFF (Air conditioner, headlamp, rear window defogger) On vehicles equipped with daytime light systems, if the parking brake is applied before the engine is started, the headlamp will not be illuminated. ● Steering wheel: Neutral (straight-ahead position) ● Vehicle speed: Stopped ● Transmission: Warmed-up (Drive vehicle for 10 minutes)

OPERATION PROCEDUREWithout Consult-IINOTE: ● It is better to count the time accurately with a clock. ● It is impossible to switch the diagnostic mode when an accelerator pedal position sensor circuit has a malfunction.

1. Perform "Accelerator Pedal Released Position Learning" a) Make sure accelerator pedal is fully released. b) Turn ignition ON and wait at least 2 seconds. c) Turn ignition OFF and wait at least 10 seconds. d) Turn ignition ON and wait at least 2 seconds. e) Turn ignition OFF and wait at least 10 seconds.

2. Perform "Throttle Valve Closed Position Learning" a) Make sure accelerator pedal is fully released. b) Turn ignition ON. c) Turn ignition OFF wait at least 10 seconds. Make sure that throttle valve moves during above 10 seconds by confirming the operation sound. 3. Start engine and warm it up to normal operating temperature. 4. Check that all items listed under the topic "PREPARATION" (previously mentioned) are in good order.

5. Turn ignition OFF and wait at least 10 seconds.

6. Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.

7. Repeat the following procedure quickly five times within 5 seconds. a) Fully depress the accelerator pedal. b) Fully release the accelerator pedal.

8. Wait 7 seconds, fully depress the accelerator pedal and hold for approx. 20 seconds untill MIL (Malfunction Indicator Lamp, a.k.a. SES light) stops blinking and is turned ON.

9. Fully release the accelerator pedal within 3 seconds after MIL (SES) turned ON.

10. Start engine and let it idle.

11. Wait 20 seconds.

Procedure timing chartIAVL pic.bmp

12. Rev up the engine two or three times and make sure that idle speed and ignition timing are within the specifications.

________________________________ ITEM SPECIFICATION ________________________________ Idle speed 700±50 rpm ________________________________ Ignition timing 15±5° BTDC________________________________

13. If idle speed and ignition timing are not within the specification, Idle Air Volume Learning will not be carried out successfully. Further diagnosis may be required.