Car wont turn off

[Mike]

Sorted the problem, after messing around with earths and making better, meatier earths, i checked the wires goin to the solenoid, the red one, (the one u chop from the lucas) was working fine, i then checked the blue plug from the lucas, which i didnt know till now, shouldnt be plugged in.

that plug was keeping a 12v feed at the solenoid.
It had only just started doing after a few weeks of the conversion.

Thanks for all the help anyway people!
Mike