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Author Topic: misfire problem  (Read 1301 times)

Offline rsgolf

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misfire problem
« on: 30 March 2012, 17:10 »
i have a 2.0 8v gti apk engine on a w plate.i have changed the coil leads and plugs was running fine for over 30 mins at work and never missed a beat.on the way home it started to misfire now and again when i got home it was worse.i have had it on the reader at work and no faults stored.any advise is much appreciated as i dont want to throw any more money at it without curing the fault.thanks guys
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Offline richw911

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Re: misfire problem
« Reply #1 on: 30 March 2012, 18:16 »
Are the plugs the correct ones for your engine? Are all the leads fully pushed home?
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Offline rsgolf

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Re: misfire problem
« Reply #2 on: 30 March 2012, 18:22 »
yes to both doubled checked them.been reading different posts saying that it could be a lambda sensor or a maf.now unsure what to do.
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Offline richw911

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Re: misfire problem
« Reply #3 on: 30 March 2012, 18:24 »
Could be the MAF and it wont always show a code - try unplugging it and see if it runs better. Could  also be the coil unit that the 2.0 8v engines have.
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Offline rsgolf

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Re: misfire problem
« Reply #4 on: 30 March 2012, 18:40 »
i disconnected the maf and didn't seem to make a difference.i replaced the coil,plugs and leads and was fine till it warmed up and misfire came back.
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Offline DubAndDubber

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Re: misfire problem
« Reply #5 on: 30 March 2012, 18:52 »
Could possibly be the CAT
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Mk5 Golf Gti 06'

Offline rsgolf

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Re: misfire problem
« Reply #6 on: 31 March 2012, 14:08 »
had the car out today and misfire only happens when car is warm any ideas what it could be causing this.thanks
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Offline richw911

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Re: misfire problem
« Reply #7 on: 31 March 2012, 15:37 »
Quote from: rsgolf on 31 March 2012, 14:08
had the car out today and misfire only happens when car is warm any ideas what it could be causing this.thanks

Temp sender?  :undecided:
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Offline rsgolf

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Re: misfire problem
« Reply #8 on: 31 March 2012, 17:40 »
car is running rich.would a temp sensor cause this and the misfire
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Offline richw911

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Re: misfire problem
« Reply #9 on: 31 March 2012, 18:01 »
Quote from: rsgolf on 31 March 2012, 17:40
car is running rich.would a temp sensor cause this and the misfire

Could well do http://www.golfgtiforum.co.uk/index.php?topic=88088.0

It usually throws a code  :undecided:
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