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Model specific boards => Golf mk3 => Topic started by: jamie snow on 06 April 2008, 14:54

Title: flat spots on my mk3 gti 8v please help
Post by: jamie snow on 06 April 2008, 14:54
 :sad: can any one help i have a very nice mk3 gti and its all good apart from when i put the foot down it has flat spots on differant rpms has anyone got any ideas please
thanks jamie
Title: Re: flat spots on my mk3 gti 8v please help
Post by: Pete Taylor on 06 April 2008, 16:31
Do you have an induction kit fitted?
Title: Re: flat spots on my mk3 gti 8v please help
Post by: jamie snow on 17 April 2008, 16:01
no the engine is standerd but ive got another problem now the car cut out yesterday and will not start
Title: Re: flat spots on my mk3 gti 8v please help
Post by: flex on 17 April 2008, 16:13
hmmm i had a kinda similar issue with mine recently the engine would cut out when the revs dropped (i thought it was not idling at first). I bought a cheap diagnostics lead and software from ebay called vag com and plugged it into my car which gave me a fault code regarding the engine speed sensor (aka crankshaft impulse sender). Im glad to say that fixed it and im back on the road and it was all DIY without paying any garages loads of cash i aint got.

I would recommend you get one and see what comes up. Its worth a shot if your stuck.
Title: Re: flat spots on my mk3 gti 8v please help
Post by: jamie snow on 18 April 2008, 10:44
how much did that cost then ill have to buy one for the car
Title: Re: flat spots on my mk3 gti 8v please help
Post by: jamie snow on 18 April 2008, 10:45
the sensor i mean
Title: Re: flat spots on my mk3 gti 8v please help
Post by: marky GTI on 18 April 2008, 10:57
:sad: can any one help i have a very nice mk3 gti and its all good apart from when i put the foot down it has flat spots on differant rpms has anyone got any ideas please
thanks jamie
hiya mate...
i had the same problem with my 8v, i had a flat spot when i put my foot down, also it would cut out now and again but would start back up.
The problem was a pipe comeing off the top of the head going down to the bottom end, it had a hole in it about the size of a 10p peice.
Its now running like a dream with no problems


Hope this helps!!!
Title: Re: flat spots on my mk3 gti 8v please help
Post by: bad-vw-boy on 18 April 2008, 11:00
i have the same problem if i come to a stop some times the revs drop off and the car stalls, its getting embarrasing... :sad:but she is also a bit lumpy ...i suppose flat spots...not to mention the heat shield on the down pipe has come loose and is ratteling....if it dont rain...then it just pours :cry:
Title: Re: flat spots on my mk3 gti 8v please help
Post by: jamie snow on 18 April 2008, 11:06
hello marky were abouts is this pipe then on the engine
thanks
Title: Re: flat spots on my mk3 gti 8v please help
Post by: marky GTI on 18 April 2008, 11:12
hello marky were abouts is this pipe then on the engine
thanks
i'll get a photo of it and i'll post it on here for you.
Title: Re: flat spots on my mk3 gti 8v please help
Post by: jamie snow on 18 April 2008, 11:13
brill thanks mate
Title: Re: flat spots on my mk3 gti 8v please help
Post by: marky GTI on 18 April 2008, 11:40
hello marky were abouts is this pipe then on the engine
thanks
i'll get a photo of it and i'll post it on here for you.

http://img134.imageshack.us/img134/5402/33439799es5.jpg
Title: Re: flat spots on my mk3 gti 8v please help
Post by: jamie snow on 18 April 2008, 11:44
nah ive had a look and seems to be all fine thanks anyway marky
Title: Re: flat spots on my mk3 gti 8v please help
Post by: marky GTI on 18 April 2008, 11:47
ok mate hope you find the problem...
Title: Re: flat spots on my mk3 gti 8v please help
Post by: flex on 18 April 2008, 14:12
how much did that cost then ill have to buy one for the car

The engine speed sensor was £45 from GSF car parts. However I wouldnt recommend u just go out and buy the sensor for the sake of it.

As i said before buy a diagnostics lead so you can try and find out whats wrong with it, all u need is a laptop with a usb port. This is what i bought:

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=150237381953&ru=http%3A%2F%2Fsearch.ebay.co.uk%3A80%2Fsearch%2Fsearch.dll%3Ffrom%3DR40%26_trksid%3Dm37%26satitle%3D150237381953%26fvi%3D1

Is it still not starting?
Title: Re: flat spots on my mk3 gti 8v please help
Post by: jamie snow on 21 April 2008, 10:47
yeah ive got it started and its running but realy bad cant move the car im goin to have to put a diagnostics on it my bros works at a garage so hes bringin his over for me i will let you now
thanks
Title: Re: flat spots on my mk3 gti 8v please help
Post by: jamie snow on 21 April 2008, 10:48
oh and flex ive got the same wheels as you apart from my golf is a 2 door nice ant they
Title: Re: flat spots on my mk3 gti 8v please help
Post by: flex on 21 April 2008, 13:29
Yeah there wicked m8 i think they really suit the car. You just have to be bothered to keep em clean all the time!

Let us know how u get on with the diagnostics.
Title: Re: flat spots on my mk3 gti 8v please help
Post by: jamie snow on 22 April 2008, 14:58
where abouts do i find this engine sencer aka cranksharft sencer please flex
thanks
jamie
Title: Re: flat spots on my mk3 gti 8v please help
Post by: flex on 22 April 2008, 15:11
Behind the oil filter at the front of the engine nearer to the gearbox side. Its a right pig to get to as u need to remove the front engine mount and starter motor bolts.

Have you determind that its the problem then?
Title: Re: flat spots on my mk3 gti 8v please help
Post by: jamie snow on 22 April 2008, 15:13
no not yet hopefully my bros comeing over with it coz he has one at his work so but i just wanted to have a look tho thanks will let you no tho
Title: Re: flat spots on my mk3 gti 8v please help
Post by: jamie snow on 27 April 2008, 16:03
ok can some one help please ive had the cat off it ok ive looked and the dissy cap and hall and the crankshaft sencer all ok
ive put a diagnostics on the car and says its all fine
but the care still will not sit at idal and it runs but really rough like blochie bits in it its doin my head in o and all so changed the trottle body and all ok and still the problem stand PLEASE HELP  :cry:
Title: Re: flat spots on my mk3 gti 8v please help
Post by: jamie snow on 27 April 2008, 16:15
also where can i find the isv on my mk3 8v gti