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Author Topic: ICV  (Read 2164 times)

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Doodley

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ICV
« on: 09 February 2008, 22:05:14 »
Well i need to clean it, but don't know where or what it is?!

there is a how to for DOHC but not v6, is it the same?
just reading through the haynes, is it referenced as the Idle speed adjuster valve in the haynes manual?
« Last Edit: 09 February 2008, 22:07:09 by Doodley »
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cem_devecioglu

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Re: ICV
« Reply #1 on: 09 February 2008, 22:08:54 »
Hi,
hope this helps

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tunnie

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Re: ICV
« Reply #2 on: 09 February 2008, 22:08:58 »
looks like this:



Can't tell if your V6 is the later one with the extended plenum, but its on the right hand side (passenger) as you look at the engine, towards the front, it will have a pipe from the bag pipes leading to it, and a leccy connector going off the back
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Doodley

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Re: ICV
« Reply #3 on: 09 February 2008, 22:11:55 »
thanks to both of you, they call it idle speed adjuster valve in haynes just to confuse me!  >:( cheers!
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tunnie

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Re: ICV
« Reply #4 on: 09 February 2008, 22:15:06 »
Quote
thanks to both of you, they call it idle speed adjuster valve in haynes just to confuse me!  >:( cheers!

Don't belive haynes anything says....

To clean the idle control valve get some carb cleaner... open the valve with a small screw driver. Fill it with carb cleaner, and give it a good damn shake with a thumb on the end.... and leave it for a while if possible!
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Doodley

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Re: ICV
« Reply #5 on: 09 February 2008, 22:19:15 »
yeah well it has the same meaning as ICV, just longer and more complicated terminolgy  ;D yep, thanks, got the carb cleaner waiting for tomorrows mission! if it is blocked up and causing a fault, isnt there a code that would store in the ECU for it?
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tunnie

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Re: ICV
« Reply #6 on: 09 February 2008, 22:22:41 »
Quote
yeah well it has the same meaning as ICV, just longer and more complicated terminolgy  ;D yep, thanks, got the carb cleaner waiting for tomorrows mission! if it is blocked up and causing a fault, isnt there a code that would store in the ECU for it?

I doubt it will be blocked, just dirty which would cause a lumpy idle.

Unless there is an electical fault with it, i doubt it would register a code.

Is your idle lumpy?
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Doodley

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Re: ICV
« Reply #7 on: 09 February 2008, 22:30:24 »
yeah, it is ok some times, but whilst drving, everynow & then EML light comes on for a few secs, but dosent seem to effect the revs or anything.

But stopped at junctions the revs drop right down, battery & oil lights come on as if its about to stool, then it picks up to about 1500 - 2000 revs then slowly drops back to 500.

I read codes, had 38, 19, & 73 so I changed crankshaft sensor.
Read the codes again today and they are all still there!
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Doodley

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Re: ICV
« Reply #8 on: 09 February 2008, 22:31:10 »
forgot to mention, it has stooled a couple of times, it didnt manage to pick the revs up quick enough!
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tunnie

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Re: ICV
« Reply #9 on: 09 February 2008, 22:32:52 »
73 is maf.... got any air leaks?
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Doodley

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Re: ICV
« Reply #10 on: 09 February 2008, 22:38:54 »
yeah i got
38 - oxygen sensor - low voltage
73 - air flow sensor - low voltage

the boy said that changing crankshaft sensor would likely cure 73.
not sure about air leaks, how would i tell? had a good check over pipes and hoses yesterday, they all seemed in fairly good condition.

cheers tunnie....... if only the site had rep points!
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tunnie

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Re: ICV
« Reply #11 on: 09 February 2008, 22:50:09 »
Quote
yeah i got
38 - oxygen sensor - low voltage
73 - air flow sensor - low voltage

the boy said that changing crankshaft sensor would likely cure 73.
not sure about air leaks, how would i tell? had a good check over pipes and hoses yesterday, they all seemed in fairly good condition.

cheers tunnie....... if only the site had rep points!

I am no means an expert i know sod all about the V6!

But 38 - oxygen sensor i seam to rember that sensor is on the exhaust ?  :-/

Could be a dud reading from the exhaust gasses....
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TheBoy

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Re: ICV
« Reply #12 on: 09 February 2008, 22:55:48 »
Quote
Hi,
hope this helps

That piccy looks familar ;)

I really must clean my engine bay.

Notice my radiator hose  :-X
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Grumpy old man

Doodley

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Re: ICV
« Reply #13 on: 09 February 2008, 22:56:00 »
yeah i read somewhere it was on the exhaust, I have a blow at the joint on the nearside exhaust where the cat meets the centre section, wonder if that could have something to do with it?

Im not sure what it means by low voltage, does that mean the sensor is getting low voltage to it, or sending out a low voltage? if its getting a low voltage feeding to it, surely changing it wont make any difference?

will start cleaning the ICV tomorrow, then will fix the exhaust and go from there, dont really want to keep changing sensors unless i know they are completly duff because they cost a fortune!
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Doodley

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Re: ICV
« Reply #14 on: 09 February 2008, 22:58:11 »
haha, i noticed that, is the rad hose joined?! i have a brand spanking VX part with braiding wound it, courtesy of the previous owner!  :y
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