I have a 2000 Honda Civic Si. My idle right now is sitting at about 500 rpms and I have been reading around and I found that most people idle at about 700 rpms. I wanted to know if there is a way to adjust the idle so that it is a little higher or is this normal? Thanks.

 

yes. There is an idle screw right on top of your throttle body. Normal idle is right around 700-800 RPM.

Turn the car on, and simply adjust the screw on top of the throttle body. HTH

 

I would suggest adjusting the screw when the car is fully warmed up. That way the engine is idling where is would normally.

 

remember that your gauge's lowest mark is ~500rpm where idle should be. B-series usuially won't idle lower that ~600rpm before they die. The line marked in this picture marked just above zero on my old GS-R is 500, as noted by the incriments. I've never seen it actually stay on that line. Is that where yours is staying?


(side not so I'm not flamed, my VSS was broken in this picture, I wasn't going 140, the speedo was spiking)

 

I was completely unaware of that. In that case my car is idling fine. Thanks a lot for the help.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Quik Chris &raquo;</TD></TR><TR><TD CLASS="quote">remember that your gauge's lowest mark is ~500rpm where idle should be. B-series usuially won't idle lower that ~600rpm before they die. The line marked in this picture marked just above zero on my old GS-R is 500, as noted by the incriments. I've never seen it actually stay on that line. Is that where yours is staying?


(side not so I'm not flamed, my VSS was broken in this picture, I wasn't going 140, the speedo was spiking)</TD></TR></TABLE>
I know this is off-topic, but what kind of tranny lets you do over 140mph and not even be turning 5k rpm???

 

did you read his answer below the picture, you even quoted it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blacksheep &raquo;</TD></TR><TR><TD CLASS="quote">
I know this is off-topic, but what kind of tranny lets you do over 140mph and not even be turning 5k rpm???</TD></TR></TABLE>

did u read his post COMPLETELY?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by poison &raquo;</TD></TR><TR><TD CLASS="quote">yes. There is an idle screw right on top of your throttle body. Normal idle is right around 700-800 RPM.

Turn the car on, and simply adjust the screw on top of the throttle body. HTH</TD></TR></TABLE>

That is incorrect, you need to unplug the eacv before you adjust the screw to do it correctly.
So warm it up first then disconnect the eacv, then adjust the idle, then shut the car off. Now either disconnect the battery or pull the hazard fuse fo 10 seconds. Next plug the eacv back in then reconnect the battery or fuse and start the car to check idle. That is the proper way to do it.

 

tbone is correct

 

what is the eacv???

 

I was not aware of disconnecting the IACV (Idle Air Control Valve) with adjusting idle.

When I have, as well as friends, adjust the idle screw, haven't had any problems with lowering the idle vacuum for the idle speed.

Seems like the proper way to do it, but other way works as well.

 

If you adjust it while the eacv is connected when you rtestart the car the ecu will try to correct the adjustment you just made. I wasnt flaming, just wanted to make sure you guys were doing it the correct way

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tbone &raquo;</TD></TR><TR><TD CLASS="quote">If you adjust it while the eacv is connected when you rtestart the car the ecu will try to correct the adjustment you just made. I wasnt flaming, just wanted to make sure you guys were doing it the correct way </TD></TR></TABLE>

Yep, if that is the correct literal way, then I stand corrected.

Just advising of what I have personally done in my experience. Thanks bro

 

Is the B16 idle really supposed to be 500? Spec for B18C1 is 750 +/- 50. Mine sits right at 750 most of the time.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PatrickGSR94 &raquo;</TD></TR><TR><TD CLASS="quote">Is the B16 idle really supposed to be 500? Spec for B18C1 is 750 +/- 50. Mine sits right at 750 most of the time. </TD></TR></TABLE>

b16 idle is about 700/750 + or - 50 rpm (according to helms manual). I've always set my friends idle at 750 so you're ok.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Malachi &raquo;</TD></TR><TR><TD CLASS="quote">did you read his answer below the picture, you even quoted it.</TD></TR></TABLE>
My bad man.. sorry.