Beeper wrote:Petrol, 2litre
im guessing being a w plate that means its using an EW engine,aluminium block no liners either basically they are very very good engines. i dont know a huge amount about them but i do know replacing one will not cost you a four figure sum. you coudl obtain a known good one for £500 and then throw a mechanic a days labour and jobs a goodun.
running lumpy when cold to me could be numerous things but a problem with cylinder 1? how would that be in intermittent fault that "fixes" iteself when warm id love your "mechanic" to explain this to me.
its probably something very simple, could even just be the wrong grade of oil in there causing, i guess these use a stepper motor? not an idle solenoid, as if it is a stepper it would be all the time not just when warm, an idle solenoid is a different story.
as for you saying about this known problem, take your car elsewhere because i have been working on pugs and a pug fanboy for the last 7 years doing various engine conversions etc etc, and i have never ever heard of any problem with cylinder 1.
if you could explain the lumpiness a little more we might be able to diagnose, is it noisier while runnign liek this, if so what type of noise and does it stop once engine is warm?
does it stall when cold?
give us any info you can and we can try to help you out.