i have a p plate jap import wrx running around 280-290 bhp started having a little puff of smoke on start up in the mornings, now all of a sudden it has started running on three cylinders
no smoke whilst travelling or between gear changes.no nasty noises any ideas it has recently had new plugs and a maf sensor with in the last 1000 miles

ceri

 

Sounds like one of the plugs is fouled, pull the plugs and check them.

Banny

 

cheers banny any other thoughts please????

ceri