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Author Topic: Bad idle HELP PLS  (Read 1237 times)

Offline Hobca

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Bad idle HELP PLS
« on: March 28, 2021, 10:35:20 am »
Chain a tensioner changed and still got this problem, anyone knows? When its warm and idling it shows specified 25 and actual 25(24-25,5)
Dv changed
Hpfp is ok
No vacuum leaks
Pcv valve changed
New watter pump and whole timing belt etc
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Offline mjmallia

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Re: Bad idle HELP PLS
« Reply #1 on: March 30, 2021, 02:44:48 pm »
Have you carbon cleaned the valves and injectors?

Checked the misfire counter on cylinders?
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Mike

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S3 8L ---- Golf Mk4 GT TDI ---- Lupo GTI ----  A4 B6 Sline ---- Golf Mk5 GTI

Offline muff1991

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Re: Bad idle HELP PLS
« Reply #2 on: March 30, 2021, 06:47:59 pm »
Sounds real rough that are you sure you haven’t got an air leak? Check the coils are plugged enough, they usually break and “can” slip off


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Offline muff1991

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Re: Bad idle HELP PLS
« Reply #3 on: March 30, 2021, 06:51:15 pm »
That said.. you should be around 28kw on the cam chain, can’t understand the foreign vcds (apologies) but if the 2 cells on the top right of your laptop are specified and actual, you’ve got a timing issue as they’re not even close! Specified will sit around 28 on idle and then your actual will usually bounce in and out a digit.


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Offline Hobca

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Re: Bad idle HELP PLS
« Reply #4 on: April 02, 2021, 08:24:52 pm »
It was bad pcv and now it is much better, but the issue is still there and timing belt was checked and its as it should be, timing chain was replaced by me with vw tools.
Here’s video how it is now.
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