d16y8 swapped to b16a2 and now my idle jerks at 15ish and after 15 there is no even idle its either faster or slower. did engine code..... iac valve anybody have any ideas other then buyin new?

 

remove it and spray the holes that go into the mani with carb cleaner and let dry. Do it a few times and should be fine. Don't spray it where the coolant lines go, just in the 2 holes that go into the mani.

 

still having probs

 

ok here is another idea. Make sure the idle screw is in. I've seen cars where the idle screw is so loose and about to fall out, and it did the same lobing. Is it doing it right after you start it or just a few minutes later??

 

no, the actual idle itself is fine, 15 and after is where its screwed up

 

so its not when its sittling and idling?? its missing when it gets around 1500 and then it jerks....Is it a 1st gen PR3/PW0?? If so swap your o2 sensors there bad. Or it could be the Cyl pos sensor going bad in the diz

 

the ecu coded 14 which is the idle air control. ive had p72 in it and now p30 skunk2chipped and it still does it

 

hey i have the same prob with my 95 ex with b16a2 you can block off your iac with some card board and it wont surge but the problem is you need a del sol b16 manifold thats why it wont idle because the a2 wont work with the ex harness

 

i have the same problem on my d16, i did a swap and then after that it does NOT idle and at 1500rpms it goes crazy, but if i WOT it works fine. but pisses me off alot. im suprise nobody knows how to fix this crap. its not the iac because i replaced it, it must be the wiring.

 

my idle is fine but i have the same thing, its fine on WOT

 

2 friends have the same setup with 98 civic ex b16a2 with p72 and it worked fine.
ive had p2p, p72 and p30 skunk2 chipped. all of them had the same jerk prob. and the one kid with the p72 switched to p28 chipped and it works fine. its gay

 

im going to switch the wires on the iac sensor cause i think the kid that did the wire harness might have it backwards.

 

I am having a hard time understanding this discussion. I simply cannot understand what you people are saying. Can someone explain the symptoms in plane and clear english.

I know I just swapped a B16a2 into a 96 DX using a 97 EX harness. Not idle problems, but I have a strange loud "hum" coming from the IABC. I swaped in another IABC and the noise persists, so I know the problem is not the IABC, but when I unplug the IABC the noise stops.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BryanPendleton &raquo;</TD></TR><TR><TD CLASS="quote">I am having a hard time understanding this discussion. I simply cannot understand what you people are saying. Can someone explain the symptoms in plane -(&lt;---plain)- and clear english.</TD></TR></TABLE>

watch ur english when u correct others grammar

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BryanPendleton &raquo;</TD></TR><TR><TD CLASS="quote">I know I just swapped a B16a2 into a 96 DX using a 97 EX harness. Not idle problems, but I have a strange loud "hum" coming from the IABC. I swaped in another IABC and the noise persists, so I know the problem is not the IABC, but when I unplug the IABC the noise stops.

</TD></TR></TABLE>

my car is doing the same thing....idle fluctuates as well, but there are times when the idle is fine...i have no idea what is wrong, I changed the IACV with a working one, and the idle is still fluctuating...

 

I HAVE THE EXACT SAME PROBLEM, can anyone please help us out? Tried replacing the IAC, no good, leaking it, no good, tried cleaning, no good..

When u gas it slighty it starts idling weird, it the CEL goes on sometimes.

so weird.. thanks for any replies

 

Did any of you try setting your idle? My car (00 si) was throwing a IACV code. When coming to a stop, the idle would hang around 1500 or so and even when stopped, it would never dip below 1200. It began throwing a IACV code. I tried cleaning it out, but that didn't work either. I ended up setting the idle per a helms.


.......with car warm and running, unplug iacv & evap purge and used the idle screw to turn your idle down. You can check it with the tach (assuming you have one). I set mine about 800rpm or so. Turn car off and reset the codes it threw and see if that helps. It worked on my car. HTH.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by See Are X &raquo;</TD></TR><TR><TD CLASS="quote">

my car is doing the same thing....idle fluctuates as well, but there are times when the idle is fine...i have no idea what is wrong, I changed the IACV with a working one, and the idle is still fluctuating...</TD></TR></TABLE>

same thing my car is doing.....

 

you might have the evap purge plug switched with iac plug that was my problem with my swap

 

SO gay... i DID indeed had it switched. Now its throwing SOLID code 10 lol what to do now guys? man thanks a lot spoonspeed it helped

 

sorry to hijack this thread..
but to all those ppl who had problems wit the car's idling problem...
does your car hunt or skips when you're driving...
like you'll be driving smoothly and out of a sudden the rev will just jump up and down by itself causing the car to jerk like hell...

i'm having that problem and i was just abt to get a new IACV until u guys said it didnt help!!..

help guys..anyone with the same problem?..

 

I know what you're feeling man, watch do this, there are a total of 3 plugs in the back of the intake manifold...
2 of em are gray and 1 of em is white
the white one is the IAT, idle air temp? i think..
the 2 gray ones are VERY commonly mixed around so change em around and see what happens


-peace

 

same problem here

 

Have you ever thought about having a vacuum leak? First of all is it surging back and forth? like 750 up to 1500 and back down to 750 and back up to 1500. Is it doing that over and over? If that is the case you have a massive vacuum leak. Whats happening is the IACV is trying to compensate for the large vacuum leak and its getting confused and it cant keep up. I replaced my intake manifold gasket and my probelm went away. Yes, this was in a b16. Alot cheaper than replacing the IACV. Good luck.

 

found prob.... wire that went from ecu to sensor was split somewhere so now i ran a diff wire to it but now i plugged in harness and now it redlines at 5 with p72 with no jerk, without vtec...... and with p30 and does norm redline but has jerk still without vtec..... all sensors are pluged in and before i unpluged harness it only would show code 14 now it doesn t even show a code its just soild!!! P.O.S