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Author Topic: 2.2 rough idle when cold  (Read 8001 times)

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Omena

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Re: 2.2 rough idle when cold
« Reply #15 on: 02 March 2016, 09:08:38 »
2.2 doesnt have ICV.

If i block egr and take socket off,  will fault code do changes to mixture etc or is it  just a code?

Or will metal plate under egr work with egr socket on?
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JoeRadosavljevich

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Re: 2.2 rough idle when cold
« Reply #16 on: 02 March 2016, 11:04:33 »
Quote from: Omena on 02 March 2016, 09:08:38
2.2 doesnt have ICV.


my apologies.
regarding blocking egr valve I think there is How To in the Maintenance area on the forum
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Omena

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Re: 2.2 rough idle when cold
« Reply #17 on: 02 March 2016, 11:22:52 »
I found only egr cleaning guide.
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JoeRadosavljevich

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Re: 2.2 rough idle when cold
« Reply #18 on: 03 March 2016, 08:51:53 »
Hm... look closer. I know there is one because I used it to block the egr on my car.
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JoeRadosavljevich

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Re: 2.2 rough idle when cold
« Reply #19 on: 03 March 2016, 08:53:37 »
But to be honest, I doubt the egr has to do with rough Idle. Did you check for vacuum leaks?

Is it an automatic? Does the rev rise when you put it in neutral while moving?
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Omena

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Re: 2.2 rough idle when cold
« Reply #20 on: 03 March 2016, 14:41:40 »
Manual.  Vacuum hoses are new now.  No effect.

-10 celcius in the morning and runs fine again.  But after 2hour it stumbles again.  Whole engine vibrates and then it goes lighter and then disappears.


Very difficult to say is it misfire or another hesitation.



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JoeRadosavljevich

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Re: 2.2 rough idle when cold
« Reply #21 on: 04 March 2016, 08:18:17 »
Does the check engine light come on?

Did you try the pedal test to see if there are any errors stored?
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Omena

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Re: 2.2 rough idle when cold
« Reply #22 on: 04 March 2016, 11:12:42 »
Pedal test ok.  No trouble codes or check engine.


Today i first time tried press pedal immediately after startup.  It dropped faster idle to normal but that roughness continued.

So seems to be like thay roughness is under 1500rpm and it lasts about 5-15seconds no matter rpm range and then disappears.  When i also tried 2000 rpm after startup it was fine.
And this is again with engine started before and cooled about 2-4hours.

Today was - 5 and it standed about 4h before next start so its very close to full cold engine.



But first cold start in morning no problem again.
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JoeRadosavljevich

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Re: 2.2 rough idle when cold
« Reply #23 on: 04 March 2016, 17:31:26 »
What about fuel consumption? Has it become worse?

There is not much I can suggest to fix it rather than spark plug wires (leads), see if there is any vacuum leak and of course, OBD 2/Tech 2 code reader.
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Omena

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Re: 2.2 rough idle when cold
« Reply #24 on: 04 March 2016, 21:32:11 »
Fuel consumption has been very good all the time.  About 7,7 liters per 100km (60miles).

I have "My Naff Code Reader" but it wont find anything and all sensor voltages etc are good.


That bothers me: why semi or allmost cold engine only?  Not warm or full cold.

Maybe i have to buy new plugs.  Coil i dont wanna buy yet, nobody has same car so hard to try that without new.
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JoeRadosavljevich

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Re: 2.2 rough idle when cold
« Reply #25 on: 05 March 2016, 09:53:49 »
Spark plug wires/leads along with spark plugs also should be replaced. If not possible then inspect them for cracks and/or change of colour on the silicone insulator.
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Omena

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Re: 2.2 rough idle when cold
« Reply #26 on: 05 March 2016, 11:16:05 »
No 1 coilpack rubber boot?  (that one where plug comes inside) has hole about size of little peanut. Its bottom side so i dont know can it cause that symptoms.

Hard to explain...
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Omena

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Re: 2.2 rough idle when cold
« Reply #27 on: 05 March 2016, 14:16:18 »
But it haa been that all the time.
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Omena

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Re: 2.2 rough idle when cold
« Reply #28 on: 15 March 2016, 18:47:28 »
Couple starts idle was okay.


Today it gived new code: p0170  :-[

What is most  common sympton for that?  I cleared it and it disappeared at least.
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Viral_Jim

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Re: 2.2 rough idle when cold
« Reply #29 on: 15 March 2016, 21:42:27 »
Fuel trim error? Lambda sensor maybe? Try get a multimeter on it, see if it behaves as it should.

As for plugs/wires, seems unlikely as it would be most noticeable when hot. I had this exact issue on my kit car. In traffic/low speed was worst.  Also, I think looking into that would be an expensive route, think the 2.2 has a DI pack. Rather than individual coil packs  :-\
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