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Model specific boards => Golf mk4 => Topic started by: stretch85 on 16 December 2010, 17:34

Title: not happy!!!!
Post by: stretch85 on 16 December 2010, 17:34
still struggleing with this misfire :cry:

scanned car with code reader, no faults which according to past experience on this forum leads to maf or ignition amplifier. so i un plugg the maf and take down the road, down on power obviously but misfire goes away. so i replace the maf with a genuine item, car ran fine when first set off not even a splutter(engine cold),but as the temp began to rise i got a splutter and then it was back to misfiring again, still showing no fault codes . any ideas??? 99 agu by the way
Title: Re: not happy!!!!
Post by: tech1889 on 16 December 2010, 17:40
Genuine maf ??
Title: Re: not happy!!!!
Post by: stretch85 on 16 December 2010, 17:48
yeah shelled out £105 plus surcharge for the bosch item, think i made a mistake buying this car, its the car from hell
Title: Re: not happy!!!!
Post by: richw911 on 17 December 2010, 18:52
Temp sender? and as you said ignition amp  :undecided:
Title: Re: not happy!!!!
Post by: jamie16v on 17 December 2010, 18:54
Temp sender?
+1
Title: Re: not happy!!!!
Post by: stretch85 on 17 December 2010, 20:13
changed the ignition amp today, still no joy. have got a temp sender but the guage is working fine,running out of ideas
Title: Re: not happy!!!!
Post by: richw911 on 17 December 2010, 20:16
changed the ignition amp today, still no joy. have got a temp sender but the guage is working fine,running out of ideas

Somtimes the gauge works fine but it can still be faulty  :wink:
Title: only missfires when warm???
Post by: stretch85 on 17 December 2010, 20:19
my car runs fine when engine is cold, but gets worse as it gets warm,some times it will pull all through the revs other times it misfires from 2grand upwards .changed maf and ignition amp for genuine items still no joy, temp guage working fine no engine codes???
Title: Re: not happy!!!!
Post by: new to vw on 17 December 2010, 23:09
Crank sensor poss or cam sensor
Title: Re: not happy!!!!
Post by: stretch85 on 18 December 2010, 10:36
ok changed the temp sensor this morning for the green one still no joy. gonna buy a coil pack today and swap that over to eliminate that, would crank sensor or cam sensor not show up on code reader
Title: Re: not happy!!!!
Post by: vwblackmk4gti on 18 December 2010, 12:07
if you have any problem with any of the engine sensors they will show up on the computer, as the ecu is constantly monitoring the engines condition.

if there is no codes check for air leaks split pipes ect...

otherwise ur throwing money away by guessing fella,,

good luck....