landy engine not stopping

hi all tdi200 think i've found the fuel cut out switch. when its running the ammeter is reading 13+ volts at the switch when i switch the ignition off
the engine still runs and the ammeter reads nil so i take it the solinoid is nackered what do you think
also how does the switch come off and any idea of the cost
cheers

Give it a clout wiv an ' ammer when the ignition is off and the engine is running and see if it jolts the solenoid enough to close.

I had this problem in me mates disco. When the hazards are on the engine keeps running. even though I was stood 50ft away with the ignition key in me pocket.