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Idle adjustments

Tiny
GARY COOK
  • MEMBER
  • HONDA ACCORD
My 1998 Honda Accord 4 cylinder idles very rough but smooths out with just a 100 to 200 rpm increase. How do you adjust the idle? And what rpm's should it be with and without the a/c on
Thursday, September 27th, 2007 AT 9:56 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
When was it last major tuned-up? Could be also the idel air control valve/speed controller-open it up and clean it.
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Friday, September 28th, 2007 AT 2:54 AM
Tiny
BRUCE HUNT
  • MECHANIC
  • 3,754 POSTS
It should idle at around 750 rpm + or - 50 rpm. This should remain pretty consistent even when the A/C kicks in.

What I think Raz was pointing to for you was to look at the engine as a whole to find of out if there is a cause for a low idle. However, there is a idle set screw on the the throttle body.
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Friday, September 28th, 2007 AT 8:54 AM

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