Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Doodley on 09 February 2008, 22:05:14
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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?
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Hi,
hope this helps
(http://i181.photobucket.com/albums/x80/mecdv6/v6enginebay.jpg)
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looks like this:
(http://www.performance-cafe.com/images/034906265c.jpg)
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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thanks to both of you, they call it idle speed adjuster valve in haynes just to confuse me! >:( cheers!
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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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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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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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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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forgot to mention, it has stooled a couple of times, it didnt manage to pick the revs up quick enough!
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73 is maf.... got any air leaks?
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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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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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Hi,
hope this helps
(http://i181.photobucket.com/albums/x80/mecdv6/v6enginebay.jpg)
That piccy looks familar ;)
I really must clean my engine bay.
Notice my radiator hose :-X
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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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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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low voltage usually means its buggered.... but what you describe could be the problem. If you have a leak on the exhaust this would cause a number of things:
1) crap fuel consumption!
2) lumpy running (i suspect the ICV is fine)
3) would also be noisey i would imagine??
Try cleaning the ICV, but i suspect your zorst to cat join is the problem
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i will do both tomorrow then! hopefully the exhaust wont be too involved and wont need parts!
its not too noisy to be honest, just sounds a little bit "throaty" i only noticed while looking underneath it, i had just started it and noticed steam and condensation dripping from the joint!