gentlemen

Im having a bit of an issue installing a turbo timer on the mk1.5 its seems to have a sense wire on the wire that connect to the acc feed so that when its switched from on to acc the momentary 0 pulse is detected and sends power down the acc feed and the on feed (which connects to the 2 on feeds from the ignition barrel, everything works fine up untill the point where the engine is switched off, the starter solenoid briefly engages and the turbo timer cuts out, it seems as if the brief zero pulse from switching from on to acc must kill a relay somewhere so the engine thinks its off but when power remains on the on when the key is removed it somehow initiates the starter....JIMI ARE YOU THERE!!!!!