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Author Topic: Misfire on initial startup  (Read 1914 times)

Offline Jonnybbad

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Misfire on initial startup
« on: 15 March 2011, 09:55 »
Hi all



I'm getting a misfire on intial startup it only does it under load if I rev the engine it's not there only last bout a min then it's fine.I've scanned it and it doesn't show any faults or codes


I've had it serviced recently hopeing it would cure this problem but it's still there


Any ideas

Thanks Jon
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Offline new to vw

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Re: Misfire on initial startup
« Reply #1 on: 15 March 2011, 11:26 »
What engine is it bud......
coil packs on properly
plugs gapped correctly
dirty plugs...eg sooted up

just the first things that come to mind :grin: :grin:
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Offline richw911

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Re: Misfire on initial startup
« Reply #2 on: 15 March 2011, 18:15 »
MAF  :undecided:
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Offline Jonnybbad

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Re: Misfire on initial startup
« Reply #3 on: 16 March 2011, 04:55 »
Sorry it's an AUQ I've had the plugs changed when it was seeviced I'm assuming there gapped right I've also changed the MAF bout 4 mnths ago before this problem



What is causing this it doing my canister in
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Offline richw911

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Re: Misfire on initial startup
« Reply #4 on: 16 March 2011, 19:15 »
Quote from: Jonnybbad on 16 March 2011, 04:55
Sorry it's an AUQ I've had the plugs changed when it was seeviced I'm assuming there gapped right I've also changed the MAF bout 4 mnths ago before this problem



What is causing this it doing my canister in

Di d you use a genuine MAF?
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Offline Jonnybbad

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Re: Misfire on initial startup
« Reply #5 on: 16 March 2011, 19:46 »
Yeah Bosch 1 from GSF it seems to be getting worse now coughing and spluttering but if you leave it to tick over for a few seconds it's fine
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Offline richw911

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Re: Misfire on initial startup
« Reply #6 on: 16 March 2011, 19:50 »
Boost leak?

Get a smoke test  :smiley:
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Offline Wayne

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Re: Misfire on initial startup
« Reply #7 on: 16 March 2011, 20:56 »
Could be a coil pack issue  :smiley:
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Offline Jonnybbad

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Re: Misfire on initial startup
« Reply #8 on: 16 March 2011, 21:00 »
Would a boost leak cause a misfire?????


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Offline Wayne

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Re: Misfire on initial startup
« Reply #9 on: 16 March 2011, 21:02 »
Quote from: Jonnybbad on 16 March 2011, 21:00
Would a boost leak cause a misfire?????




Yes it could  :smiley:
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