Right - I have checked out the ICV and the wiring. The ICV is fine, and I've cleaned it out really well. The wiring is absolutely fine, no breaks/shorts etc can be detected or visually seen.
Since filling up from empty at a different LPG garage tonight it does feel SLIGHTLY better, and hasn't hunted / cut out, yet, on either fuel.
I will say that on petrol / lpg, there is no real noticable difference, the idle feels just ever so slightly lumpy on both... you can feel an intermittent "vibration" through the gear stick when stood ticking over, as if it's almost, but not quite missing a beat.
I may be barking up the wrong tree here, but I'm considering possibly ignition components may be worn. I recently put new plugs in, but I'm aware that double electrode plugs are no good for LPG, and that single electrode plugs should be used. I've also read that the plug gap for LPG should be .7mm rather than the factory standard 1.0mm.
I think I might just try avoiding the previous garage for a while, and fill up at the new "flogas" one where I did tonight, and see what changes. It's more expensive, but worth it as a test.
If that brings no joy, I think my next course of action is going to be to strip down the inlet, right down to the platic inlet bridge. Get a different set of trumpets with better mounted LPG nozzles, and build it all up with new genine seals / O rings right up to the plenum, and also do breather seals. Just to totally ensure no air leaks. At the same time, fit some NGK plugs with the appropriate gaps. Expensive option, but I'm not sure what else to do.
Any thoughts / ideas? Am I talking rubbish?
Any help is much welcome
Cheers
J
Ive got dual electrode plugs in my Omega, always have fitted them. My VeccyC had quad ones fitted. tho i changed them to dual ones, didnt seem to make any difference to it.
I dont think single/dual ones make much difference..Mark has suggested quad plugs might shield the lpg from the spark. If you fit single electrodes ones, expect to change em twice as often, plus plug gap should be increased slightly to get a bigger spark not a smaller one.
Tho as Kevin mentioned in another thread if your dis pack is getting 'tired' increasing the plug gap might cause more missing, but if its giving a strong output, a bigger spark is what you need
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Topic: Idle problem - update (Read 2061 times)