Non Starter

[neilw]

Can somebody help please before I set light to my griff (4.0 litre 92). Went out in at at the weekend and it ran very rough as if it was only on 4 cyls. Got to the top of my road and it stalled and has refused to restart. I had noticed on the run before that the idle was very fast but I don't know if that's just a coincidence. I have eliminated plugs, leads, rotor arm, distributor cap and coil. It turns, there is a spark but it won't fire. I have read elsewhere that the stepper motor may need cleaning but would a dirty stepper stop the car from running ??? Sorry for the long message but I am getting desperate and would appreciate some thoughts before I send for professional help and recieve yet another dent in the wallet.

[neilw]

Thanks for the replies. The weather was bone dry so I don't think dampness is an issue. The spark does seem a little weak to me but I'm only an amateur. Where is the coil amplifier is it easy to change ???

[neilw]

Thanks siwes I'll give it a try.

[neilw]

I may seem a bit dim but I can't find mine. The coil is bolted via a bracket to the side of the engine. Leading to the coil is 2 pairs of wires which then disappear with a bunch of others towards the bulkhead. There is no sign of anything else wired in before the coil. What sort of size is the coil amplifier and is it possible that it could have been removed previously (the car ran fine until recently) or is it likely to be located elsewhere.

[neilw]

TMS have just quoted me £75+ vat for one. Does that sound right, is there anywhere else I can get one ???

[neilw]

Yes it was on the side of the dizzy changed it and still no luck. Turns over weak spark and no sign of firing. I give up. I'm going to the pub and having it sent away for surgery. Unless there is any thing else that I could try ??