Had Gas conversion end of November and it was running well on both fuels.
Didn't use petrol for about a month, apart from initial starting. Tried running it on petrol and it 'kangarood' above 3000rpm.
Didn't worry about it too much and just put it on my 'to do' list when the weather warms up.
On my way into work a couple of weeks ago, going uphill from 2nd to 3rd gear under quite hard accelaration, and had an almighty backfire, then ran on 3 cylinders. I nursed it into work, about 3 miles. Had a look around and checked the plugs at dinnertime and didn't find anything untoward except for slighlty sooty plugs. Ran fine on the way home, on both fuels.
Since then, about 2 weeks now, it runs on 3 cylinders until it's warmed up, then it's fine.
Got a new set of HT leads and plugs, dizzy cap and rotor, still the same. Got some Holts wet start protection, as I thought it could be a damp problem, and gave all the electricals a good spray treatment. Still the same.
Got me confused has this one
Anyone had a similar problem, or give any advice as what to check next?
1988 1.9DG Fuel injected, Gasure conversion.
