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Author Topic: Car idle speed raising on its own and dropping lumpy. Video  (Read 5756 times)

Offline Scottymon

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Re: Car idle speed raising on its own and dropping lumpy. Video
« Reply #15 on: January 19, 2014, 10:13:05 am »
PCV / Coils / Plugs / MAF / TB

Personally, I would scan it to see if there's a misfire recorded and which bank.

I'd check the plug gaps and perhaps replace if due.

Definitely look at swapping the PCV and go from there.
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Offline rich83

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Re: Car idle speed raising on its own and dropping lumpy. Video
« Reply #16 on: January 19, 2014, 10:14:41 am »
Quote from: Scottymon on January 19, 2014, 10:13:05 am
PCV / Coils / Plugs / MAF / TB

Personally, I would scan it to see if there's a misfire recorded and which bank.

I'd check the plug gaps and perhaps replace if due.

Definitely look at swapping the PCV and go from there.

Wont be those ^^^
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Offline rich83

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Re: Car idle speed raising on its own and dropping lumpy. Video
« Reply #17 on: January 19, 2014, 10:22:13 am »
Quote from: Scottymon on January 19, 2014, 10:21:03 am
A Misfire not potentially caused by faulty plugs or coils... :confused:

Doesnt sound like a misfire to me.
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Offline Scottymon

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Re: Car idle speed raising on its own and dropping lumpy. Video
« Reply #18 on: January 19, 2014, 10:25:52 am »
Also, when my TB was dieing, it did exactly the same as in that video, revs up and down at idle.. Replaced it and no issues... Never touched the PCV, idles perfectly. 

It's most likely the PCV has broken but its not always the same issue. 
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Offline smithyc1987

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Re: Car idle speed raising on its own and dropping lumpy. Video
« Reply #19 on: January 19, 2014, 11:26:53 am »
Tb??
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Offline rich83

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Re: Car idle speed raising on its own and dropping lumpy. Video
« Reply #20 on: January 19, 2014, 11:30:05 am »
Throttle body.
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Offline smithyc1987

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Re: Car idle speed raising on its own and dropping lumpy. Video
« Reply #21 on: January 19, 2014, 01:10:21 pm »
New video it is now doing this hissing when remove dipstick and idling high.
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Offline Scottymon

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Re: Car idle speed raising on its own and dropping lumpy. Video
« Reply #22 on: January 19, 2014, 01:12:22 pm »
Revision N is the latest, grab one! :wink:
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Offline rich83

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Re: Car idle speed raising on its own and dropping lumpy. Video
« Reply #23 on: January 19, 2014, 01:50:40 pm »
PCV
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Saintsteve

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Re: Car idle speed raising on its own and dropping lumpy. Video
« Reply #24 on: January 19, 2014, 03:41:56 pm »
Quote from: EddieA on January 19, 2014, 10:11:31 am
Exactly the same as what I had, sometimes it would do it and others it wouldn't. It's the pcv, change it and it'll be fine.

Cheers Eddie, at least someone else agrees... :innocent:
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Offline Scottymon

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Re: Car idle speed raising on its own and dropping lumpy. Video
« Reply #25 on: January 19, 2014, 05:48:22 pm »
I think everyone agrees it could be the PCV Steve... except for perhaps the OP, lol.

Do it do it do it
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Offline smithyc1987

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Re: Car idle speed raising on its own and dropping lumpy. Video
« Reply #26 on: January 19, 2014, 06:25:41 pm »
Still think itd pcv ok will get 1 sorted in the week.
Doesnt seem down on power tho and only does it when warm.
Also coolant temp gauge seems to take longer to get upto temp and also drops up and down quite a bit
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Offline smithyc1987

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Re: Car idle speed raising on its own and dropping lumpy. Video
« Reply #27 on: January 21, 2014, 08:19:25 pm »
Not pcv but looks like engine temp sensore right side of engine. When unplugged the hunting and rough idle stopped.
Also threw up a intake leak code after we unplugged the temp sensor??
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Saintsteve

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Re: Car idle speed raising on its own and dropping lumpy. Video
« Reply #28 on: January 21, 2014, 09:17:55 pm »
Have you actually replaced the PCV yet ?

Don't forget, by disconnecting items, will throw up fauts in other areas that may not be directly connected to the faulty item.

Remember the PCV is not electrical and will not show as fault if your using VCDS!!!
« Last Edit: January 21, 2014, 09:20:26 pm by Saintsteve »
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Offline Scottymon

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Re: Car idle speed raising on its own and dropping lumpy. Video
« Reply #29 on: January 21, 2014, 09:24:24 pm »
Any members local that you can swap over to test..?
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