fast idle problem

2004 NISSAN ALMERA
60,000 MILES
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62ST29
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I cleaned the throttle body and now the engine idles at 1200-1500 rpm?
Nov 5, 2011 at 3:25 PM
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FIXITMR
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This is normal and will be okay if you drive the car for a couple of miles it will relearn and ide down. Make sure there are no vacuum leaks here is a guide to help.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Let me know what happens.
Nov 5, 2011 at 3:33 PM
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62ST29
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the car is a 1600cc automatic transmission electronic throttle model.
I cleaned it because on inspection there was a tacky/gummy substance around the butterfly. I took the air filter hose assembly off the throttle body and removed the four bolts out, removed the throttle body and spray the interior with a icf aerosol cleaner and reassembled.
Nov 5, 2011 at 5:29 PM
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FIXITMR
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Please read all instructions and be familiar with them before any attempts.
A stop watch or an analog clock with a second’s needle will be useful.

ECU Resetting Procedures

Timing is extremely critical. If it is NOT DONE within the specify time, the ECU will not reset and the Check Engine Light (CEL) will continue to remain ON.
A stop watch or an analog clock with a second’s needle will be useful.

Operations Procedures

1. Confirm that accelerator pedal is fully released, turn ignition switch “ON” and wait 3 seconds.
2. Repeat the following steps (2a and 2b) procedures quickly five times within 5 seconds.
2a. Fully depress the accelerator pedal (HARD).
2b. Fully release the accelerator pedal.
3. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the CEL starts blinking.
4. Fully release the accelerator pedal (while the CEL is still blinking)
5. Wait about 10 second.
6. Fully depress the accelerator pedal and keep it for more than 10 seconds.
7. Fully release the accelerator pedal (The CEL light will continue to blink).
8. Turn ignition switch to “OFF” position and now you can start the car. The CEL light should be gone.

If the CEL light continues to remain ON, repeat the above steps. Timing is EXTREMELY critical to resetting the ECU.


Accelerator Pedal Release Position Learning

Operation Procedure
1. Make sure that the accelerator pedal is fully released.
2. Turn ignition switch “ON” and wait at least 2 seconds.
3. Turn ignition switch “OFF” wait at least 10 seconds.
4. Turn ignition switch “ON” and wait at least 2 seconds.
5. Turn ignition switch “OFF” wait at least 10 seconds.

Throttle Valve Closed Position Learning

Operation Procedures
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch is “ON”.
3. Turn ignition switch is “OFF” wait at least 10 seconds.
Make sure that the throttle valve moves during above 10 seconds by confirming the operating sound.


Idle Air Volume Learning (Throttle Position Learning)
It is better to count the time accurately with a clock.

Operation Procedures
1. Perform “Accelerator Pedal Released Position Learning”.
2. Perform “Throttle Valve Closed Position Learning”.
3. Start engine and warm it up to normal operating temperature.
4. Turn ignition switch “OFF” and wait at least 10 seconds.
5. Conform that accelerator pedal is fully released, turn ignition switch “ON” and wait 3 seconds.
6. Repeat the following (steps 7a, 7b) procedures quickly five times within 5 seconds.
7a. Fully depress the accelerator pedal (HARD)
7b. Fully release the accelerator pedal.
8. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the Check Engine Light (CEL) stops blinking and turned ON.
9. Fully release the accelerator pedal within 3 seconds after the CEL is ON.
10. Start engine and let it idle.
11. Wait 20 seconds.
12. Rev up the engine two or three times and make sure the idle speed and ignition timing are within the specifications.
Nov 6, 2011 at 6:01 AM
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62ST29
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Hi fixtmr,
Thanks for your patience. The CEL is not on I will follow the instructions for the relearn procedure and let you know of the results ASAP.
I live in Barbados.
I will go through the procedure this morning and see what goes.
Nov 6, 2011 at 11:13 AM
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62ST29
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I have tried the throttle position learning procedure and the engine runs smoothly, it took till the next day of driving before it started to idle down thanks for your help I love this site.
Nov 6, 2011 at 3:14 PM
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STRAILER
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Nice work, we are here to help, please use 2CarPros anytime.
Dec 22, 2016 at 4:58 PM
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LEWIS2012
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engine revs up and down then cuts out
Jan 2, 2019 at 5:47 PM (Merged)
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JACOBANDNICKOLAS
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Check for vacuum leaks and check the idle air control valve (IAC)
Jan 2, 2019 at 5:47 PM (Merged)
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LEWIS2012
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where do i find the IAC valve?
Jan 2, 2019 at 5:47 PM (Merged)
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JACOBANDNICKOLAS
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The IAC is located on the throttle body.
Jan 2, 2019 at 5:47 PM (Merged)
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LEWIS2012
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its a primera sorry not almera
Jan 2, 2019 at 5:47 PM (Merged)
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LEWIS2012
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is that dwn at pedal or up on the engine
Jan 2, 2019 at 5:47 PM (Merged)
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JACOBANDNICKOLAS
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On the engine where the air intake is.
Jan 2, 2019 at 5:47 PM (Merged)