[Mothy]

Ok - its been such a long gap - very busy doing other things and only recently got back to trying to fix this up.

Step 1 - Got a replacement light switch and that has fixed the unrelated but troublesome electric issues.

Step 2 - got a replacement WUR and the problem has not changed - so that is not the problem. Still works OK for a 10 minute period then plays up once everything is in warmed up status. If I stop and let the engine cool down, the problem goes away for about 3 minutes then comes back.

Symtoms include the engine cutting out - like the electrical supply has been cut off for about a second or two, but only when the throttle is opened - idle is fine.

Looking at the wiring diagram, it's possible that the relay is activating as if t thinks it's on starting mode - but since the key is not in start position the line connection for relay in start is a dead connection. I'm also going to put in a test light to see if the cutout is caused by the relay activating

Next check after that is going to be the AAR to see if that is misbehaving once the engine warms up.

Next after that will be the Air Flow sensor switch in the intake manifold.

Step by step - we will get there!