Jump to content
The mkiv Supra Owners Club

Idle Air Control Valve (IACV) Delete running syvecs


johnd-mkiv
 Share

Recommended Posts

if you delete the idle control valve on the stock ecu, it will struggle to start/won't idle and constantly cut out

 

if you run an aftermarket ecu which you say you are, that will take it's reading/control somewhere else as I know that with the haltech's you don't need the IACV and they get removed/blocked

 

I was going to remove the coolant lines from mine and bypass them to clean it up a little and get rid of more unnecessary pipework

Link to comment
Share on other sites

Personally I would leave it on as the syvecs can control it fine and it does make it easier for cold start and idling

 

We used to remove them on the early AEM as they used to jam

 

You can remove it if you want and raise the idle to compensate but its not ideal.

Link to comment
Share on other sites

Personally I would leave it on as the syvecs can control it fine and it does make it easier for cold start and idling

 

We used to remove them on the early AEM as they used to jam

 

You can remove it if you want and raise the idle to compensate but its not ideal.

 

Sorry for the hijack John :)

What about this on your old Veilside plenum and throttle body Lee?

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.