problem mk3

[john ratty]

please can someone help ive got 95 mk3 gti keeps cutting out when driving mainly on main A roads 60-70mph ish shuts down all lights are on dash then starts up again before i have stopped . i have been told its a relay but not sure sounds fuel related garage says relay they should know best but dont know which one unless they replace them all sound like cowboys please can someone with good knowledge help this could be realy dangerous thank you

[Autogasm]

Hi there, I think my first option would be the coil. These are known to give problrms with this model and can give all sorts of running problems.

They bolt to the panel behing the engine on the passenger side. Hope thats your problem

[martin vr6]

Try replacing the ECU relay and Fuel pump relay, these are both common faults on the mk3 Golf, and give very similar symptoms to what you are having

[wrighty78]

I'm going through the same problem here:

http://pistonheads.co.uk/gassing/topic.asp?h=0&amp... Mk3 GTI 16v - misfire help please

New coil (from ECP) and ECU relay (from VW) bought and fitted, but no joy yet. Fuel pump relay should be arriving in the next couple of days.

EuroCarParts didn't seem to have the ECU relay, hence going to VW. The VW part no for mine (a 16 valver) is 165906381 and it'll cost just over a tenner.

Have you tried cleaning the throttle body?

Hope this helps. Good luck and let us know how you get on.

[john ratty]

thanks for your ideas will try replacing coil over weekend and wait and see what happens

[wrighty78]

My new fuel pump relay arrived on Wednesday and, so far, there's been no more mis-firing. Don't want to tempt fate, but I think we might have solved it...