High idle

10

Asked by Jul 15, 2017 at 08:49 PM about the 2002 Nissan Altima 2.5 S

Question type: Maintenance & Repair

I just developed a high idle when gear is in
park. The rpms use to stay on 1000 when
in gear. now it's raising to 1400 and with
the ac on it drops back down to 1000. I
have a throttle body that's 2 years old. I
don't know what do do. The code I am
getting is PO 507

1 Answer

855

There was a TSB concerning this issue. Would clean the throttle body and have a look at all your hose connections. Wells has a better explanation of how to do the relearn procedure but this is what will give you an idea. Turn key On (not starting) for 3 seconds and off for ten seconds 3x's Then turn ignition on for three seconds press accelerator 5x's and release for three seconds then push down for 7 seconds and hold Engine MIL should blink within 10 seconds if not restart procedure. Start car as normal and rpm level should drop.

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