Author Topic: occasional miss fire  (Read 1045 times)

Offline lisabet34

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occasional miss fire
« on: 09 August 2006, 17:33 »
hi am back again after sorting my ecu problem car has been running like a dream . have just had an mot and it went straighy through .great ..... or so i thought it then started stalling at junctions and every so often it has alittle miss fire.please can someone help have had someone look at it but they r confused as to what it is 2 thanks lisa

Offline Uruk Hai

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Re: occasional miss fire
« Reply #1 on: 09 August 2006, 17:41 »
Could be a plug, a lead the dizzie cap or rotor arm

Offline lisabet34

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Re: occasional miss fire
« Reply #2 on: 09 August 2006, 17:54 »
dizzy cap and rotary arm is what someone else said but these were only replaced about 5 months ago could this still possibly be the problem being they are not very old ?? soz for being thick but i havent got a clue

Offline Uruk Hai

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Re: occasional miss fire
« Reply #3 on: 09 August 2006, 17:55 »
It might be worth putting a set of spark plugs in it, do you know when they were changed last ?

Offline lisabet34

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Re: occasional miss fire
« Reply #4 on: 09 August 2006, 17:57 »
done that today :sad:

Offline Uruk Hai

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Re: occasional miss fire
« Reply #5 on: 09 August 2006, 18:06 »
HT leads ?

Offline lisabet34

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Re: occasional miss fire
« Reply #6 on: 09 August 2006, 18:12 »
r they the leads that go on top of plugs if so these were done bout 5 months ago 2

Offline Uruk Hai

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Re: occasional miss fire
« Reply #7 on: 09 August 2006, 18:18 »
If thats the case the best thing you can do is try and get it to someone who specializes in VW's because one or more of the parts you fitted may have failed but there's no point just guessing which one !

Offline lisabet34

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Re: occasional miss fire
« Reply #8 on: 09 August 2006, 20:51 »
ok thanks 4 ure help

Offline rubjonny

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Re: occasional miss fire
« Reply #9 on: 10 August 2006, 09:52 »
what make cap/arm/sparkies did you buy, cheepies from halfords just wont last!

Get your service bits from http://www.vwspares.co.uk

Take your plugs out and carefully examine the gaps, if any are different then they have been bashed about in the box and its thrown the gapping out.  If you buy sparkies from vwspares, get the 3 prong type as they are much less prone to having the gapping thrown out of spec.  My mate had no end of problems with the single prong type, soon as he switched to the 3 prong type all was well!

If you have an 8v Digi or K-Jet get these:
http://www.vwspares.co.uk/product_info.php?products_id=45
Or a 16v get these:
http://www.vwspares.co.uk/product_info.php?products_id=66
Hello my name is John and I'm a dub addict.