idle up and down after new motor? Whats wrong?

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Old Mar 14, 2005 | 07:26 PM
  #1  
dscrxsi20's Avatar
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From: Forest Lake, MN, USA
Default idle up and down after new motor? Whats wrong?

I just put a j-spec d16a6 in my CRX. i have a jackson racing supercharger. i think i have every thing hooked up where it was. But there isnt any vacume leakes. i know that a buddy of mine put a turbo on his car and it did the same thing. Can any one help me, hints, ideas, any thing.
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Old Mar 14, 2005 | 07:31 PM
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Default Re: idle up and down after new motor? Whats wrong? (dscrxsi20)

Sticking or dirty air control valve. Remove and clean.
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Old Mar 14, 2005 | 07:46 PM
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Default Re: idle up and down after new motor? Whats wrong? (beepy)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beepy &raquo;</TD></TR><TR><TD CLASS="quote">Sticking or dirty air control valve. Remove and clean.</TD></TR></TABLE>
where is that located??
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Old Mar 14, 2005 | 08:32 PM
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Default Re: idle up and down after new motor? Whats wrong? (kevino002)

sure you dont have any vac leaks.


IAC valve is on your intake manifold, check that like stated above.


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Old Mar 14, 2005 | 08:34 PM
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Default Re: idle up and down after new motor? Whats wrong? (platinum00)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by platinum00 &raquo;</TD></TR><TR><TD CLASS="quote">sure you dont have any vac leaks.
</TD></TR></TABLE>

betting on this one.
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Old Mar 14, 2005 | 08:36 PM
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Default Re: idle up and down after new motor? Whats wrong? (dscrxsi20)

Make sure your radiator is blead. If there are any air pockets it can cause a fluctuating idle.
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Old Mar 14, 2005 | 09:37 PM
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Default Re: idle up and down after new motor? Whats wrong? (platinum00)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beepy &raquo;</TD></TR><TR><TD CLASS="quote">Sticking or dirty air control valve. Remove and clean.</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by platinum00 &raquo;</TD></TR><TR><TD CLASS="quote">sure you dont have any vac leaks.


IAC valve is on your intake manifold, check that like stated above.</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DOHCarp &raquo;</TD></TR><TR><TD CLASS="quote">Make sure your radiator is blead. If there are any air pockets it can cause a fluctuating idle.</TD></TR></TABLE>

and also the fitv
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Old Mar 14, 2005 | 11:04 PM
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Default Re: idle up and down after new motor? Whats wrong? (PrettyLude)

i had the same problem and the problem was that the throttel linkage was adjusted so that the throttle was open with out pushing gas.
-Toby
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Old Mar 15, 2005 | 07:05 AM
  #9  
dscrxsi20's Avatar
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Default Re: idle up and down after new motor? Whats wrong? (dscrxsi20)

Well HONDA-TECH you have saved my *** again. i cleaned and adjusted what i think is the idle air control, but what ever you called it, it worked. But there is a problem with running lean when im just at a steady speed. do you have any ideas on this problem. plus what kind of cars you all got.

signed stupid minnesota ricer
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Old Mar 15, 2005 | 07:17 AM
  #10  
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Default Re: idle up and down after new motor? Whats wrong? (dscrxsi20)

do you have a FPR, what is your rail pressure.

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Old Mar 15, 2005 | 08:55 AM
  #11  
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From: Forest Lake, MN, USA
Default Re: idle up and down after new motor? Whats wrong? (platinum00)

I dont have an aftermarket fuel pressure regulator. and i dont know my fuel pressure. but before i swapped out motors i didnt have a problem and i thought it was the same motor. but i dont know.
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Old Mar 15, 2005 | 10:35 AM
  #12  
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Default Re: idle up and down after new motor? Whats wrong? (dscrxsi20)

are you using the ecu from your old motor, what ecu is it.

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Old Mar 15, 2005 | 01:06 PM
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Default

Either fix or ditch the FITV.
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