I have an 2000 s2000 that is idling great but when you rev it up with the a/c on and let it fall back to idle, it almost dies. It doesn't do it with the a/c off. I have cleaned the throttle body and IAC thoroughly with no change. I have done the ecu idle learn procedure multiple times with no change either. the symptom does not occur during normal driving, only on a free rev with the a/c on. please help
Thanks, Drew

 

Recent weather change?

Search for "map whack".

the end.

 

Fuel trim looks great! 0-5%
Drew

 

As long as the car doesnt stall its normal.

 

Hi I have a 2001 S2K and it does the same thing. Ive tried everything that the people on the forums recommend but still no change and my car even dies completely. So I'm takin mine to the shop and tellin them to find out wat it is and I will let you know when they find out.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cool_junk &raquo;</TD></TR><TR><TD CLASS="quote">I have an 2000 s2000 that is idling great but when you rev it up with the a/c on and let it fall back to idle, it almost dies. It doesn't do it with the a/c off. I have cleaned the throttle body and IAC thoroughly with no change. I have done the ecu idle learn procedure multiple times with no change either. the symptom does not occur during normal driving, only on a free rev with the a/c on. please help
Thanks, Drew</TD></TR></TABLE>

Did you clean out the MAP sensor port as well?

 

that has nothing to do with weather change or sensor what so ever... hence, it only happens with the A/C is on??? ... its completely normal the RPM fall with the A/C on... what happen is that, the A/C pump restrict the RPM speed (at idle) because of the friction from the pump...

now of your car dies completely, the A/C line might be clogged, kink, or faulty A/C pump itself... symptoms of that, not blowing as much cold air anymore...

 

If the map port was clogged it would show up in the fuel trim! (It's perfect!)

 

i have an 01 s2k and it happens to me to, but mine happens to me when the a/c is off to, but my car never dies, so i figure its just normal...

 

your ok