VS Clubsport bad Miss underload

[richo7502000]

Hi Guys,
I have a 95 VS Clubby on Dual fuel, It has been running great until last night when It developed a bit of a miss.
It idles slightly worse but at around 2500 to 3000 RPM underload it really coughs and misses. The Tacho Needle jumps around as it does it also so i am wondering if something is grounding out???.
Has anyone come across this problem before as I really need the car back in action to get to work (missus hates me pinching her car).
I was also thinking ignition module but am only stabbing in the dark.
I can drive carefully at 100KP/H constant and it seems ok but load up the revs and she misses.
Cheers (merry Xmas)
Richo

[hako]

First I'd throw a new set of plugs in - next replace the leads unless they're pretty new then think ignition module. Not sure if your model has a rotor button but if so then check that for tracking/arcing.

[richo7502000]

I had a friend tell me that they replaced plugs, cap, etc, etc and it ended up being an ignition module......might be worth a try since I can pull one from my VN Calais 5 litre.

[richo7502000]

I tried the Ignition module today and it didnt help at all.... I also checked the EST function of the Computer and it worked fine. The Cap and Rotor look perfect too!

[richo7502000]

Holden had the car all day Thursday and still cant get to the bottom of this one......they suggested I did not have Genuine plugs and leads but I have new NGK R's and Bosch leads fitted which are probably better than Genuine anyway????
anyone know a good diagnostic bloke in Melbourne???

[VrWagz1]

Yeah they just saying that crap cause they got no idea whats going on by the sounds of it.

If the tacho's bouncing then i would suggest dizzy and coil to be my first targets.

[5.0L UTE]

Mate I had the same problem with my ute when through all the stuff mentioned above then changed the COIL & problem solved hope this helps

[Emackulation]

Use your leads form your calais to swap, thenwork from there.