Intermittent Misfire / cutting out

[Parksy87]

Plunger is the little rubber doodah onthe end of the solenoid, take the solenoid out take the little rubber doodah off and keep it safe thing is it wont shut off with the ignition you'd have to stall it but worth a try just incase, before you do that turn your ignition on and give the feed to your solenoid a wiggle see if it clicks incase you have a dodgy connection