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Model specific boards => Golf mk4 => Topic started by: stretch85 on 11 December 2010, 18:10

Title: misfire development
Post by: stretch85 on 11 December 2010, 18:10

ok, my tiny every now and then miss fire has shown its face big time. its doing it right through the rev range on anything other than a gentle throttle.also when we set off in the car the revs were goin up and down when it is normally dead steady when ticking over. any more thoughts as my code reader aint gonna be here till end of week

Title: Re: misfire development
Post by: richw911 on 11 December 2010, 18:13

AGU? MAF or ignition amp  :wink:

Just a guess need to scan it first.

Title: Re: misfire development
Post by: stretch85 on 11 December 2010, 18:19

yeah is an agu, would both of these faults show up on scan tool???

Title: Re: misfire development
Post by: richw911 on 11 December 2010, 18:22

Quote from: stretch85 on 11 December 2010, 18:19

yeah is an agu, would both of these faults show up on scan tool???

Maybe, The Amp will show as a missfire (usually cylinder 3) The MAF wont always give a code.  :smiley:

Title: Re: misfire development
Post by: Wazzzer on 11 December 2010, 18:29

Ignition amp never showed up on vag com with me  :sad:

Title: Re: misfire development
Post by: richw911 on 11 December 2010, 18:30

Quote from: Wazzzer on 11 December 2010, 18:29

Ignition amp never showed up on vag com with me  :sad:

Ah really - sorry i stand corrected  :smiley:

Scan it and take it from there  :smiley:

Title: Re: misfire development
Post by: Wazzzer on 11 December 2010, 19:06

Not saying you're wrong mate as mine wasn't strictly knackered, it was overheating due to the transfer paste breaking down

Title: Re: misfire development
Post by: richw911 on 11 December 2010, 19:15

Quote from: Wazzzer on 11 December 2010, 19:06

Not saying you're wrong mate as mine wasn't strictly knackered, it was overheating due to the transfer paste breaking down

I see bud yeah i guess it depends on the fault with the amp   :smiley: