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Scott Scottish
Posted on Tuesday, October 29, 2002 - 07:59 pm:   Edit Post Delete Post Print Post

I am in Australia. I have a 95 Disco. It has done about 60 thousand miles. I had hard start problems - they have now well and truly been rectified. There were a host of things that went wrong at about the same time. I replaced plugs, leads, coil (from Bosh to a new ACEL coil - made in the good old US of A)a new Australian Bosh HEI module (Amplifier), and new rotor button and disy cap. The Sparke out of the new NGK Iridium plugs in absolutely insane. I had an Acel on another vehicle and after 20 years it was still producing a huge reliable sparke! Anyway the problem is that whilst running the thing before sorting out these problems on Liquid Petrolium Gas (LPG) which runs through a carbie (the vehicle when running on Petrol - for my friend in the US thats gasoline! - is fuel injected) it backfired badly blowing the airbox. That has been replaced. The problem is now that since the backfire and rectifying of sparke problems it runs beautifully under acceleration, but will not idle properly. When warm it is worse. It idles down to run on only one bank of cylinders. It is the same whether on LPG or petrol which therefore excludes the fuel injectors or fuel pressure etc. I wonder therefore whether it would be a vacume leak under the plennum chamber where the vac hoses run to. I am going to take of intake manifold and have a look. A have a new gasket set to put it back together. Has anyone had similar problems? If anyone can shed dome light I would be grateful. Thanks All.

Scott

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