VW Golf mk3 engine stutter

[duke thrust]

Hi,

I have a problem with my mk3 Gti 2.0 8 valve: When I'm on the motorway (and pretty much anywhere else when I can get over 50 mph) and I'm on part throttle (not quite on the over-run, not accelerating, just cruising really) the car seems to stutter. All of a sudden for a split second it's as if the engine cuts out and you get a jolt through the car and then it's fine again. It doesn't seem to do it when accelerating or braking and it doesn't do it when cold. The gauges don't die and the stutter is really quick, over in a flash. It doesn't feel like a fuel problem i.e. no loss in power (apart from during the split second), no missing or popping - but obviously I can't be sure.

I've replaced the plugs and coil and fairly recently the water temp sensor, before I spend more cash on the leads, cap and rotor arms does anybody have and ideas as to what could be causing the problem?

All suggestions gratefully received!!

[duke thrust]

Thanks guys, it's also been suggested that it could be either the ECU or fuel pump relays - sounds plausible to me, any thoughts?

[duke thrust]

Just to add a bit of info to this tread in case it's of any use to anyone else:

I bought a new ECU relay as according to the GOlf GTi boys this was the most likely culprit. As soon as I left the VW dealership the problem vanished. The only thing is is that the relay isn't fitted, just placed in the glovebox for fitting later that day.

So I didn't find the problem but it cost me 50 quid for a new coil, never mind....

Most likely to be damp somewhere I'm guessing.