Quote:
Originally Posted by TheTwelveQuidKid
I had a fiat 132 many years ago that used to do this. It was a faulty ignition switch. The engine would just randomly cut out, but it started again with another turn of the key.
Also, what about the idle control valve ? (Bosch systems - this is the thing that's partly built into the distributor), and is wired to the ignition amp. I seem to remember the wires for this in the dizzy were very thin and vulnerable to damage. I would have thought if necessary it's possible to bypass this. Sorry for the vague description - it alters the ignition advance retard electronically to compensate for varying engine loads, to keep the idle constant. Some Vauxhalls had the same set up , ie Nova SRs etc.
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Some of this not particularily relavent for the 1.9 carb engine, Dizzy has the hall sender in it and thats it. Idleing all done on the carb. This dizzy also still has the vacuum attachment to alter timing for loads as all engines of old did.
If you are getting a good solid 12V at the coil then fusebox and ign switch should be ok. Any fluctuation of the 12v however and i'd be suspecting either the switch or Aux relay as already mentioned.