Originally Posted by Toe Knee
Havnt read half of that
but reading ur first post, i had a missfire on my cossie, sometimes would run fine then sometimes would missfire, hold back etc then be ok etc etc
Turned out to be the inlet plenum gasket had split causing an airleak!!!
Might not be that but symtoms are similar!!
....ok... I'm almost out of ideas, so I will have a look, how will I be able to check that....???