Hi all, I'm hoping someone can help, now I have a 1993 LS400 it has about 300k on it but it's in great shape. Anyhow it has developed a low idle problem (only when you 1st step on the gas) and it's "only after the 2nd start-up", so only when it's warm. It runs normal for the 1st start-up, but after that when it's warm, (and any warm) once you start it and start to pull away you really have to feather the gas upon leaving the parking lot and keep it under 20kms for about 1 whole minute, or it bucks and farts and I could probably stall it if I pushed further on the gas. Once I'm moving (after a minute or so) then it starts to run more normally again, except at the 1st few stop lights. Put it this way, I don't try to pull into traffic to quickly!

These problems are all low rpm problems not really idle problems per say, (I hope that made sense) and I haven't really had any problems once it apparently "clears" its self, once I'm moving at higher rpms it appears to be normal again and I can accelerate normally without any problems, it's just from a stand still and only when it's already warm, it's totally fine when it's cold? It starts everytime, no problem there! Has anyone got any ideas, I don't have any warning dash lights on! Thanks