Hi, my mate has a misfire on his rs, we have had it on diagnostics and no faults show, has been to ford and same result.
When you rev it has a sort of mettelic sound from top of engine. when you drive car it pops,bangs, backfires, just feels like you;ve swapped a couple of leads over.
It has had top end rebuilt, every sensor changed,coil pack,plugs, swapped ecu, turbo etc. now running out of ideas. mate has a complete rs for parts but just dont have a clue now?
Any ideas would be appreciated..

steve

 

Check the crank shaft breather pipe

 

cheers mate, i'll let owner know to check it..


steve

 

Misfire now sorted, owner of rs has a breakers yard and had been filling car up with fuel from out of cars they emptied, only they were mixing petrol/diesel and filling rs with it...derr!



steve