Only recently my S2 has started to missfire onboost at 10psi and above, i've look at the plugs and tehy are fine leadas are newish so is the dizzy, rotor arm and cap. What else could it be?

 

Connection to and or the amal valve.

 

connection is fine to that

 

And what about the valve itself?

 

dunno lol how can i tell if its playing up ?

 

it should click a couple of times when you turn the ignition to the second stage...

 

if you need one i have a fully working s2 amal valve


in experiance with boost probs on rsts its been plug and lead related, id also look for leaking hoses, colapsing hoses, timing , co levels etc all basic stuff but never say its a newish set of plugs/leads cant be that

some just give up the ghost so early its unreal

im no expert but every little helps aye

 

I had misfire on boost recently, cured with new cap and rotor arm...

Got to sort my cold start problems out now ROFL