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Never happened before, in fact its always started on the button and idled at around 900/1000 RPM when warmed up.(be it infrequentely)./ plug lead dropping off momentarily... and causing it to stall ??! Renewed the ignition components lately ??!....??! After a bit of a belt and a sudden stop ??! or just randomly cutting out ?!|| S256SX Airwerks Powered MR2 Turbo || V10 BMW M5 || I can actually feel it struggling a bit. Its only started doing it this last week though, could the hot weather be a factor.. shoudl run better if anything... I'd shoot for ignition components initially.... as any breakdown in this area can cause the problems you're experiencing...... I changed out a timing belt / tensioner the other week with similar symptoms.... the car started running like crap... and found the tensioner had broke - the tensioner keeps the tension tight on the timing belt.... so the mechanical timing belt driving the cams from the bottom end.... one of the cams had jumped a tooth.... which made it run lumpy / idle slower......|| S256SX Airwerks Powered MR2 Turbo || V10 BMW M5 || I've had the cambelt replaced around 1000 miles ago actually. Do I look into that by taking off the cover? And if so, what am I looking for? Its just when I'm stopped in traffic that the revsidle at around 500RPM, otherwise its running fine. Been out today (not quite as warm as its been but still hot) and the car has behaved fine, idling just below 1000RPM when temp gauge up up to just below halfway.(my doctors favourite saying when he has no idea whats wrong with you) - 'one of those things'? 
Ive got a rev 3 engine as well. Im thinking its the Idle speed control valve under the throttle body. Want to make sure first though before i rip it all apart. Ive got my MOT tomorrow so need to give the car a good checking over but hopefully if all goes well ill rip the throttle body off on Tuesday and have a look at the idle speed valve. I know there is a test for the electrical side of things but cant remember what it was and i cant seem to find it using the search function. Im pretty sure there is a common fault with one of the wires breaking. Thanks for the reply though, I'll keep my eyes on this thread. I'm hoping its not serious as my car is presently up for sale.??!! Wonder if the idle control valve is partly gundged up with oil and occasionally "free's up" or in this case "sticks".... does it rev above 1K ?|| S256SX Airwerks Powered MR2 Turbo || V10 BMW M5 ||JJ wrote:Still doing it
Colds starts
When warm it drops to around 500/600 and feels like its choking to death then next time i come to a stop im back to normal around 900 rpm and so on. On further inspection ive noticed there is a touch of oil present around the air supply pipe to the idle control valve. Im thinking its gunged up as you say and partly blocked or something like that. Need to also know why the oils getting in there in the first place. Its a low milage engine and doesnt use hardly any oil so maybe just a build up over time as i never thrash the car. Could be that it needs a right good clearing out on the motorway? Anyone else had any changes?