John106

Thanks, but I have tried that and used sealant spray. I think it is some sort of electrical problem, maybe with choke or idle valve.

I have a 1990 LS400, which starts first time, every time but, in cold and damp weather it begins to run lumpily after 5-10 seconds and then, after a minute or 2 it cuts out all together. If I leave it for about an hour and restart it, the problem does not recur. It is really a nuisance to have to start the car an hour before I go out! Any suggestions?