i finished for the most part the install of my skunk2 intake manifold tonight, and i have two problems.

1: high idle - ive read a bunch of stuff about this, but no real clear cut way to fix it. any ideas or expirenece with this?

2: temp gauge going way high when cruising, but when i get in the gas it goes back down to normal. could this be caused by having some of the smaller coolant lines mixed up? i also bypassed the throttle body and the iac form the coolant flow, and i didnt know if that would do somthing?

if anyone has any input id love to hear it, i want to drive my car this weekend if i can. thanks.

Adam

 

check ur gasket, and ur FITV and IAC...

MY FITV needed to be removed...

 

what an fitv, never heard of it.

Adam

 

could the temp gauge problem just be air in the system?

and could the ecu just need to get used to the changes?

Adam

 

FITV: Underneath ur throttle body, has coolant lines going to it.
Reset your ECU, (disconnect the - terminal)

 

how high is your idle?

 

If the FITV never closes (as a function of coolant temp), it'll always idle high. You either have to get rid of the FITV or reconnect it to get the idle to drop.

You'll also be getting rid of the cold start fast idle function if you get rid of the FITV by plugging up the holes.

You can also switch to an OBD-2 TB that doesn't have the FITV.

 

the idle is about 1500.

so do i have to hook up the FITV for it to idle right? unless i get an obd2 throttle body? routing coolant back throught the iac wont help at all?

Adam

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ncVTEC1313 &raquo;</TD></TR><TR><TD CLASS="quote">the idle is about 1500.</TD></TR></TABLE>
If it's rock steady, then that sounds about right for the FITV being open all the time.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ncVTEC1313 &raquo;</TD></TR><TR><TD CLASS="quote">so do i have to hook up the FITV for it to idle right?</TD></TR></TABLE>
Yes. Once the FITV can feel the coolant temperature, it'll expand the wax seal and close off the FITV air passage....which will leave teh idling function mostly or strictly to the IACV.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ncVTEC1313 &raquo;</TD></TR><TR><TD CLASS="quote">unless i get an obd2 throttle body?</TD></TR></TABLE>
If you get an OBD-2 TB, it'll eliminate all cold start fast idle function. It'll idle at 750-800rpm all the time regardless of coolant temp.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ncVTEC1313 &raquo;</TD></TR><TR><TD CLASS="quote">routing coolant back throught the iac wont help at all?</TD></TR></TABLE>
It would help more if you routed the coolant to the FITV instead.

 

thank you for that information. ill put it to good use once i get some hose to rerun the coolant to the FITV.

Adam

 

[QUOTE=ncVTEC1313]the idle is about 1500.

wow... onlee 1500... haha the first time i cranked my car when i did my manifold was 5 grand. haha sure it was 2 in the morning and we hadda retighten alot... but yah...

 

Your idle might just be the result of a vaccuum leak. The problem you are having with the temperature is a result of air in the cooling system. To resolve this issue, fill your overflow reservoir with a 50/50 mixture of water and coolent. Remove the radiator cap and start the car up. Let the car heat up all the way and be sure to have a towel around the radiator opening since there will likely be a bit of overflow. After the car has warmed up and run for a few minutes, turn the car off and replace the cap. This should resolve your temperature issue.

 

what about if u used type R throttle body
does it have fitv also
cause I have the same problem
I also have apexi controller
do you think maybe is the apexi?

 

I just installed an s2 pro series manifold yesterday and Im idling at 3000 at startup and it only drops down to about 2.2k after its warmed up for a minute but its dumping coolant out of the bottom passenger side coolant line where theres the fitting with the branch on it. I dont know what to do with this branched off line. any suggestions? does anybody have pictures of their s2 pro series intake manifold installed?

 

I would double check your hoses for the coolant leak.

For the idle I would get some brake cleaner and spray it around the intake manifold. I am almost certain you have a leak on either the intake manifold gasket or throttle body gasket. Did you remove ALL of the factory IM gasket?