180sx really low idle

well hope someone can help me with this... my 180sx starts up and idles grand for about 2/3 minutes but then the idle drops to about 500 revs and the exhaust warning lights comes on. engine doesnt cut out? there is a blow in the turbo elbow gasket could this be the cause?

thanks lads

sounds lik your lamba sensor id say lad,try swap one with someone and you should no

thanks man. and if its not the lamba sensor any other ideas wat it could be? :eek:

Maybe an air leak some where. Try your vacume hoses and maybe your intercooler piping

cheers, and wats the best way to check for leaks? im new to all this turbo and intercooler crak :p