it switched itself On, if I run engine it runs without key!

[SergSC]

Any ideas?
Sitting here with engine running. Cant turn it off... if I take the key out the revs drop 200 but keeps running...
there is a smell from the fuse box area.

Help please.
S

[SergSC]

cheers,
any idea what caused it?
Thinking water got in the fuse box somehow.