Honda D Series Forum banner

iacv

  1. y7 3 pin IAC not working with p28?

    Forced Induction
    So I put together my turbo d16y7 recently; - 00 d16y8 intake manifold with the back iacv port and the injector air hole things are plugged and not leaking - stock d16y7 throttle body with the 3 wire IACV - chipped p28 ECU So the car starts up quickly, idles at 1500RPM for a bit and then goes...
  2. Chasing CEL's...frankenstein car

    Engine Management
    Hey Guys! New to the forums because Ive searched all over d-series.org and cant find anything. My situation is very specific. Recently bought a 99 Ek Coupe with a D16Y8 in it. When I purchased the car it had the motor half taken out of it. Half of the motor mounts were off, harness was...
  3. Unique Idle problem on stock d16y8 auto

    General Tech
    Hey D-Series.org! I am new to these forums. I know there are thousands of threads about Idle problems but I think I have a somewhat unique problem on my hands. I want to try to figure it out with you guys first before I take it to a mechanic. So my car is all stock. Auto d16y8. On cold start...
  4. Hi everybody!! i'm a new member so i'm introducing myself and an idea i just had

    New Member Introductions
    nice to meet you, i'm hondur. Does anyone think theres a market for refurbished throttle bodys? With the IACV and FITV both cleaned and serviced? My thoughts are that since i have several laying around, and idle fluctuation issues are common, its a good plan to thoroughly clean em, paint them...
  5. Needed or not the FITV...

    Engine Building
    In the process of building the engine for my del Sol I've opted out of using the FITV by using a B16A TB. I feel it looks cleaner under the engine bay, and it's one less mechanical thing to deal with. But earlier today I was able to fix a friends car that had an idle issue. A b7 with a b16a...
  6. 95 Civic, Idle Hunting/Surging many many problems...

    General Tech
    So I know this topic has been covered 100 times before but I cant find exactly what I am looking for. So my Civic idles at about 1500 which is too high. then it idle hunts from ill say 1400-1600. the tach does not move much but you can hear the difference. so like everyone else I cleaned my...
  7. Idle issues after pcv hose replacement

    General Tech
    First off, I don't make threads unless I'm completely stumped. I may just be in a bad mood and not thinking straight. Here goes. Engine is a d15beast7. I found a tear in my lower pcv hose going to the black box while changing my oil the other day. The tear was right before where the clamp...
  8. Need Help Bad!!!

    Engine Building
    Installed the edelbrock performer x on my d16y8 98 civic ex and the godspeed 68mm throttle body. Now, the stock throttle body has a water jacket that the iacv hooks to, the godspeed does not. So my only thought was to cap off the tubing going from the iacv to the throttle body. Hooked everything...
  9. d15b7 Idle issues

    New Member Introductions
    ok so a couple weeks ago i tackled an engine swap, i replaced the d15b8(boat anchor) with a d15b7 picked up a different ecu p06 for the b7, started her up and it was idle surging from 1k to 3k back and forth, so i figured it was the iacv, i wound up partially covering up the fitv opening with...
  10. d16y7 IM Y8 swap help with throttle body

    Naturally Aspirated
    Ok so I have this crazy delusion of trying to add a y8 intake manifold from an manual onto my 98 civic with a y7 I know the issue is the iacv. I could use my y7 throttle body but I'd rather swap one out with the iacv valve on the throttle body. I was leaving towards getting a b serries...
  11. Cleaned IACV now idle surges 1000-2000 rpm, need help

    General Tech
    i cleaned my IACV over the weekend because of a rough idle, now when the car warms up the idle surges/bounces between 1000-2000rpm. i didn't have this problem before cleaning the IACV and i'm 100% certain that i put things back the way they were taken out. i've since then i've retraced my steps...
  12. if anyone knows the answer.. PLEASE HELP!!

    Naturally Aspirated
    alright.. for the past few months now my 2000 civic dx with a d16y7 has been giving me the most bitch-made cold start problems ever. almost every time when I go to start my car In the morning it will kick over for about a half a second then die. I'll then have to unplug my iacv (which always...
  13. d16z6 with y8 tb, wont idle??

    General Tech
    What's up guys? I got 91 civic dpfi-mpfi conversion, obd0- obd1 jumper, p28 ecu. The motor is d16y7 with a z6 head, z6 mani, y8 tb. Since I swapped the tb to y8, the car wont start without throttle, than wont idle, if I give it gas than its stumbles and runs like s#!t....Any ideas?? I know the...
  14. NEED ASAP: D15B8 IAC valve

    Want to Buy
    Hey guys, my daily is down and driving this $25-dollar-a-day truck is fuckin killing me. I need an IAC for a D15B8 (wide bolt pattern). I've looked through all my local pull a parts (pick n pull now, actually) and I can't find a thing. Help a brother out DSO! If you have one please let me...
  15. Tranny conversion complete. 10 mins shitty idle.

    Transmission alley
    Hello all, and thanks. Last weekend I did a auto to manual swap on my 99 civic ex. The tranny was from a 98 civic ex. Anyways, everything works fine, however for about the first 10 mins, the car idles from 1500-2000 up and down every few seconds or so. I plan on doing this for the fix: Any tips?
  16. Bad Idle

    General Tech
    Ok, so I've been having some idle issues for a while now and finally got a day off work so I decided to clean the iacv. well after I cleaned it, it seemed to work great for about ten minutes. now it wont idle over 600 rpm and when I'm driving and I'm coming to a stop and push the clutch in, the...
  17. D16y7 High Idle? 2500 rpms!!

    Forced Induction
    Hey guys, in the morning when the car is cold the rpms shoot up about 2500 rpm which is ok but after the car warms up and even if I take the car out for a while the rpms only drop to about 1900-2000 rpms. When the car is in motion and I take out the clutch the rpms stay at 2500 and when the car...
  18. WTB iacv plug (2 wire)

    Want to Buy
    doing an auto-manual conversion on my 96 civic so i need to switch the 3-wire auto iacv plug off the harness for a 2-wire 5spd iacv plug. it has to fit the iacv for a y8 manifold. ive looked in all local (and even some non-local) salvage yards but everyone seems to be cutting harnesses off...
  19. OBD2 IACV wiring

    Naturally Aspirated
    ok so i have a 3stage vtec D15B with the right p2j-003 ecu. i've been having major issues with my idle and i want it resolved....and low and behold clubcivic and H-T cant help, so i'm finally deciding that the home of D is the solution. :D the iacv wire has been moved to a12 and the orange...
  20. le and acceleration problem

    New Member Introductions
    i ha ve a 94 civic coupe. a6 block/z6 head, auto tranny. sometimes my idle gets very jumpy, bouncing between 800-1800 rpms. and when i, driving, my car is very sluggish to accelerate, like its bogging down. could this be an iacv problem, tranny problem, fuel..? anybody have any ideas.
Top