Vectra 2.6 GSI idling problem (with video!) - VVON
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  #1  
Old 11-02-10, 21:37
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Default Vectra 2.6 GSI idling problem (with video!)

I 'THINK' It's only on cold startups- bit hard to tell at the moment as it's always cold lol.

BORKED

For some strange reason, it took quite a while to stop doing it today- Usually it stops after about 30 seconds.

I have replaced the engine temp sensor about a week ago- I have new plugs, fuel filter, oil filter/ oil, etc etc to give it a good service when I get a bit of good weather.

I've had the car about a month (Near enough), and going on receipts, it's had 2 brand new (decent batteries) in the last 3 years... this one was new about 5 months ago- But you'll see in the video that the lights dim slightly too. I'll get the battery checked in the coming days, but any thoughts on what my problem could be with idling?

I 'THINK' It's only on cold startups- bit hard to tell at the moment as it's always cold lol.

Someone said to check/ clean/ or replace the ICV- But where is that located on the 2.6?
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  #2  
Old 11-02-10, 21:41
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Default Re: Vectra 2.6 GSI idling problem (with video!)

i am guessing towards the idle control valve the hunting will cause the light to dime a little but never seen that before, Take it you dont have any EML lights on, ANOTHER THING TO TRY COULD BE THE MAF sencor

Dam caps
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Old 11-02-10, 21:52
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Default Re: Vectra 2.6 GSI idling problem (with video!)

It's had a very recent brand new Bosch MAF fitted, and the EML is on (Can't remember what for- Leeky will prob remember), but prob because the EML bulb is either not in place, or it's blown, because it doesn't work.

I'll be fitting one when I buy the LED dash kit for it.

Need to find out where the ICV is on this engine hmm
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Old 11-02-10, 21:55
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Default Re: Vectra 2.6 GSI idling problem (with video!)

give that ICV a good clean out that will be my first port of call
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Old 11-02-10, 21:59
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Default Re: Vectra 2.6 GSI idling problem (with video!)

Will do- Just need to find the bugger first lol.

Where's our 2.6 Guru (Chrisfraser) gone? lol
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Old 11-02-10, 22:02
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Default Re: Vectra 2.6 GSI idling problem (with video!)

Think the idle control valve on the 2.6 is built into the throttle body as it is fly by wire.

Take the inlet off to the throttle body and spray a load of carb cleaner into the port for the idle valve, it may help.
The other cause of lumpy idle may be a faulty mass airflow sensor(maf) but you may have to plug in a code reader to check
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Old 11-02-10, 22:05
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Default Re: Vectra 2.6 GSI idling problem (with video!)

Right- will go grab a can of carb cleaner tomorrow so I can give the throttle body a good clean when it's off.

Just hope it is actually in there lol. Anyone got a pic of what one looks like? I don't want to spray the wrong bit in carb cleaner and fudge something else up
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Old 11-02-10, 22:10
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Default Re: Vectra 2.6 GSI idling problem (with video!)

you will not **** it up fella car cleaner will disolve
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Old 11-02-10, 22:12
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Default Re: Vectra 2.6 GSI idling problem (with video!)

Cool. Just waiting on my roose plenum hoses to come then I can strip it down and give it a shot (Didn't fancy trying to put the original black hoses/ clamps back on so have taken the opportunity to upgrade them lol)
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Old 11-02-10, 22:19
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Default Re: Vectra 2.6 GSI idling problem (with video!)

seems odd that the revs are causing the dash lights to pulse like that poss altenator fault
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