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idle air controller problems 

 

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 Post subject: idle air controller problems
Posted: Thu Jun 22, 2006 11:24 pm 
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Hi IV just finished tubing my ef with snort performance kit.

I have a few teaving problem's my car started idling up 1000 1/2 rmp then stick on 2000rpm.i thought it was my throttle cable sticking but it wasn’t and I knocked the idle air sensor wire off and it started running fine but would not idle properly when car was cold.

I was told by ford if I run it with out the idle air plugged in it would blow the computer in car. So I got a second hand idle air controller from wreckers put it on and now the car idles up 1000 1/2 for bout 10secs the idles were it should. It so enjoying because when you stop at an intersection it idles high for 10 secs or longer then drops bloody thing drives by its self till it idles back down.

Could I have another faulty idle air sensor or do I have some other problem?



im running a vortec 12.1 fmu fuel reg and stock ecu comp 5 speed manul.

Cheers Matt w
:idea:
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Posted: Fri Jun 23, 2006 2:24 pm 
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Sound like you need a bypase valve or in turbo speak "A blow off valve" Sounds like blower is raiing your idle due to sligh pressure f blower through throttle body....
Does it do this if a vacuum hose or inlet hose is off?? Ths will test if blower is doing this?????

 

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Posted: Sun Jun 25, 2006 12:25 pm 
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So if i pull of any vacume line doesnt matter what one and see if it still idles up?
if it stops then the turbo is affecting the idle air controller.?

does any one know if its safe to run the car with out the idle air sensor pluged in?

i have some pics just dont know how 2 post em up here yet.

thanks for your help ill try it with vacume line off see how i go. :?
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Posted: Sun Jun 25, 2006 12:39 pm 
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Some people run all the time with the Idle valve removed.

 

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Posted: Sun Jun 25, 2006 12:43 pm 
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It will be fine!!! Leave it off .....

 

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As in ZOOM 126 edition
331 Dart block,3.25/ 4340 steel crank, Oliver rods,TFS ported track heat heads, TFS track heat inlet Twin SC61 turbo's
Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

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 Post subject: yeh thanks
Posted: Sun Jun 25, 2006 12:50 pm 
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ill leave it off till i can fined out why it keeps playing up the only reson ill keep it is the car doesn't idle properly till car warms up a little.

:roll:
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 Post subject: Re: yeh thanks
Posted: Sun Jun 25, 2006 2:10 pm 
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{USERNAME} wrote:
ill leave it off till i can fined out why it keeps playing up the only reson ill keep it is the car doesn't idle properly till car warms up a little.

:roll:

Does it idle high with inlet off throttle body???? S/c side....
Setting timing retarded allitle will help.. Actually if you are runing std eec it should be retarded 2 to 4 * Imo to be safe......
On EF just slot crank/ cam senser ....

 

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As in ZOOM 126 edition
331 Dart block,3.25/ 4340 steel crank, Oliver rods,TFS ported track heat heads, TFS track heat inlet Twin SC61 turbo's
Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

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Posted: Sun Jun 25, 2006 11:06 pm 
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Sounds like its Turbo'ed but is running a vortech rising rate reg.

 

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Posted: Mon Jun 26, 2006 1:43 pm 
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hello how do i retard my timing back a bit?cant quit follow sorry.
how i turn my static timing back to 4?
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Posted: Tue Jun 27, 2006 1:44 pm 
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any idear on changing static timing im use to my old dissy on my xf not sure bout the Efs setups

cheers Matt w :?
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Posted: Tue Jun 27, 2006 2:11 pm 
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take off the crankshaft position sensor, and elongate the holes, you want to move the sensor to the right to retard the timing a few deg

 

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Posted: Wed Jun 28, 2006 1:27 pm 
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hi elongate the holes, how much would that bring back timing ruffly?
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Posted: Wed Jun 28, 2006 6:46 pm 
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about 1 degree per mm of movement

 

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