[medic911]

Warm day so did more debugging. To recap. Starter cranks when key turned but keeps cranking even with key removed. Requires you pull the +ve off the battery to stop it. Pulling the yellow wire off the starter and just jumping it and the starter works fine. Also bench tested ok.

Have disconnected the following, all without any change in the situation. That is, any jumping with the yellow wire attached to the starter causes run-on for the starter.

14 pin connector at rear right unplugged
Under seat plug for fuel enrichment pulled off
14 pin at firewall pulled
Every relay next to fuse panel pulled
Yellow wire from engine temp sensor pulled

When I disconnected the yellow wire at the starter and just jumped the starter to fire the engine, I noticed that the alternator light was on at the dash. I had the regulators replaced at the same time as the main engine harness. Could a faulty alternator be causing all this grief somehow?