Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by: KPower

can i delete IAC valve on 1.6

Old 02-10-2011, 12:13 PM
  #21  
Boost Czar
iTrader: (62)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 79,483
Total Cats: 4,076
Default

I enjoy a/c idle up with my MS. I think removing it on a street car is silly, especially if the only reason is to uncutter the engine bay, or removing on less thing that will fail.

I've blown a few motors, shall I remove that too?
Braineack is offline  
Old 02-10-2011, 12:47 PM
  #22  
Senior Member
iTrader: (3)
 
thasac's Avatar
 
Join Date: May 2005
Location: Mass.
Posts: 811
Total Cats: 43
Default

Originally Posted by Braineack
I enjoy a/c idle up with my MS. I think removing it on a street car is silly, especially if the only reason is to uncutter the engine bay, or removing on less thing that will fail.

I've blown a few motors, shall I remove that too?
I can't disagree with that. If my car was a 'street car' in the sense that it was driven with regularity and/or had AC I would have retained it.

For those like me who don't have AC/PS and aren't bothered by some inconsistency until warm up, then it's just one more thing you need to package which is necessarily needed.

For me it made my coolant reroute and my intercooler piping far easier to accomplish (and simpler). Any aesthetic benefit was a resultant, not an intention.

-Zach
thasac is offline  
Old 02-12-2011, 02:34 AM
  #23  
Elite Member
iTrader: (13)
 
falcon's Avatar
 
Join Date: Dec 2009
Posts: 2,499
Total Cats: 16
Default

I only used my IAC with the MS for warm up and had it set to turn off when the car was warm. Now that my car is only going to see the weekends and track days I just took it off. With no PS or A/C there is not need. If you have either, or DD the car... keep it.
falcon is offline  
Old 02-12-2011, 04:08 AM
  #24  
Senior Member
iTrader: (6)
 
Gryff's Avatar
 
Join Date: Aug 2009
Location: Charlotte, NC
Posts: 924
Total Cats: 16
Default

Originally Posted by thasac
For me it made my coolant reroute and my intercooler piping far easier to accomplish (and simpler). Any aesthetic benefit was a resultant, not an intention.
What is the purpose of the coolant lines going into the IAC? Are they actually necessary to run with the IAC plumbed or can they be dry?
Gryff is offline  
Old 02-12-2011, 06:08 AM
  #25  
Elite Member
iTrader: (24)
 
kotomile's Avatar
 
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,537
Total Cats: 42
Default

Originally Posted by Braineack
I've blown a few motors, shall I remove that too?
My car runs without an IAC. Will yours run without an engine? Seems like a silly analogy to me.
kotomile is offline  
Old 02-12-2011, 09:11 AM
  #26  
Elite Member
iTrader: (1)
 
richyvrlimited's Avatar
 
Join Date: Jun 2006
Location: Warrington/Birmingham
Posts: 2,642
Total Cats: 42
Default

Originally Posted by Gryff
What is the purpose of the coolant lines going into the IAC? Are they actually necessary to run with the IAC plumbed or can they be dry?
There is an additional air bleed controlled by a wax valve for cold running. once hot this valve closes and idle is regulated electronicall soley

you can remove the coolant lines, but I'm not sure if there is enough range of movement in the IAC valve without the wax valve operating.
richyvrlimited is offline  
Old 02-12-2011, 09:49 AM
  #27  
:(
iTrader: (7)
 
magnamx-5's Avatar
 
Join Date: Jul 2006
Location: nowhere
Posts: 8,255
Total Cats: 4
Default

the thermostatic valve doesnt help that much. Ive had mine blocked off for a good while. AIC is 1000000 times more usefull.
magnamx-5 is offline  
Old 02-12-2011, 10:13 AM
  #28  
Boost Czar
iTrader: (62)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 79,483
Total Cats: 4,076
Default

Originally Posted by richyvrlimited
you can remove the coolant lines, but I'm not sure if there is enough range of movement in the IAC valve without the wax valve operating.

yes there is. I have that removed...to clean up the bay.
Braineack is offline  
Old 02-12-2011, 10:16 AM
  #29  
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,085
Total Cats: 375
Default

I run a 99 motor with no TPS and no IAC. I was happy to cut it loose after a bout of it attempting to idle at 5000rpm.
hustler is offline  
Old 02-12-2011, 12:06 PM
  #30  
Senior Member
iTrader: (6)
 
Gryff's Avatar
 
Join Date: Aug 2009
Location: Charlotte, NC
Posts: 924
Total Cats: 16
Default

ok cool! I figured it was something to that nature, but just wanted to check.
Also, you stated that yours is blocked off. Mines not blocked off, both the valve on the IM and the valve in the TB are just sitting there high and dry.

Last edited by Gryff; 02-12-2011 at 06:46 PM.
Gryff is offline  
Old 10-04-2011, 04:30 AM
  #31  
Newb
iTrader: (1)
 
gotxqss's Avatar
 
Join Date: Dec 2005
Location: Las Vegas, NV
Posts: 42
Total Cats: 0
Default

This removal causes a cel correct?? Anyway to get around that?

Wont have any driveability issues other then idle drop/stall when clutch in. And idle raise for p/s and a/c Which i dont have
gotxqss is offline  
Old 10-04-2011, 10:28 AM
  #32  
Boost Czar
iTrader: (62)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 79,483
Total Cats: 4,076
Default

Originally Posted by gotxqss
This removal causes a cel correct?? Anyway to get around that?

Wont have any driveability issues other then idle drop/stall when clutch in. And idle raise for p/s and a/c Which i dont have

what are you trying to accomplish on your stock ecu?
Braineack is offline  
Old 10-04-2011, 10:55 AM
  #33  
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,085
Total Cats: 375
Default

Originally Posted by Savington
Street cars, OTOH, get idle valves. There is no reason (other than laziness) to not run an idle valve on a street car.
I've never owned a Miata with a working IAC, lol.
hustler is offline  
Old 10-04-2011, 12:02 PM
  #34  
Newb
iTrader: (1)
 
gotxqss's Avatar
 
Join Date: Dec 2005
Location: Las Vegas, NV
Posts: 42
Total Cats: 0
Default

Well i was in the cleanup/simplify redo few things with new greddy turbo setup car i bought. Already yanked off. Dumb possibly but a lil **** idle while cold doesnt bother me much as im in vegas so pretty brief time till warm.

Finally got car back together and having issues with shitty driving. Have a cel for the isc code which was removal of this and another for charcoal/smog ****. Both i thought i removed on old car too with no issues.

We have tried bypassing the fmu and bipes removal with no help. This was a new to me car so trying to figure out ****. Im guessing a 190walbro and 550s w mspnp gonna be quikly on my list
gotxqss is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Full_Tilt_Boogie
Build Threads
84
04-12-2021 04:21 PM
stoves
Suspension, Brakes, Drivetrain
5
04-21-2016 03:00 PM
Trent
WTB
2
10-01-2015 12:15 PM


Thread Tools
Search this Thread
Quick Reply: can i delete IAC valve on 1.6



All times are GMT -4. The time now is 10:34 AM.