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[Kev_B]

Well, went to Vx for a set of plugs, asked the price first of course...  £3.81 + vat each.... GM09s. So I politely said 'No thank you' and went down the road and bought 4 NGKs for £12 (strict budget... ie skint... hehe)

Took the coil pack off only to find plug wells full of oil, as I suspected, pumped it out with a trigger-spray thing then stuffed kitchen roll down to get rid of last bits and cleaned/dried coil pack. Rocker cover gasket will have to wait until next week.
Put new plugs in (old ones seemed fine though...)

Went for a test run, switched to gas and at first it ran worse than before    but all of a sudden the misfire disappeared and it ran fine 

Only problem that is noticeable now is although it will sit and idle fine at around 700/750 rpm if I'm stopped for more than 15/20 seconds and try to pull away as normal it will try to stall unless I blip the throttle first, (only a touch, up to say 1000 rpm and let it drop back down) it will then pull away fine. I'm sure I can live with that for now though.

I must say though that I am very confused that the computer can still tell me my instantaneous mpg etc... how? Surely this is done by the flow being measured somewhere in the fuel line and seeing how the gas is seperate to that how does it do this? Does it make educated guesses from pedal position to road speed?

Cheers
   Kev.

[tunnie]

Took the coil pack off only to find plug wells full of oil,

You need to change cam cover gasket and get those breathers clean 

[Kev_B]

Took the coil pack off only to find plug wells full of oil,

You need to change cam cover gasket and get those breathers clean 

Yup, it will have to wait 'til next weekend now though   
Suppose that's one advantage of only having 4 pots... only one gasket...     That's the only one I can think of though...   
Used to have a 2.0 Carlton CDX auto that did a lot more to the gallon than this does, the exhaust is blowing a little at the y-section though, can't see that affecting mpg there but you never know. Anyone any idea on the price of that bit? Seems a strange exhaust system... 1 into 2 back into 1... why?  :-?

[TheBoy]

Aftermarket LPG conversions piggy back off the main engine ecu - the main ecu does all the work, the LPG ecu intercepts the fuelling signals, and moifies them.

So the engine ECU still thinks its fuelling as normal, thus figure on MID.

[des.allen]

Just a little update, I fitted a brass connector off an old vapouriser i had to the rear drivers side of plenum and car now runs nearly perfect on gas.
Just a little tweaking with pressure over next few days and all should be ok.
It was nearly stalling when i applied brakes before but now doesnt bat an eyelid