Yellow is sitting for now. I have tracked some of the problem. A year ago I partially rewired the engine harness. I moved the Alternator and Oil pressure wires to the pass. side fender and also regrounded everything with my own "Hot Earth" setup. It was running excellent all last year and up to about a month ago. The wires to the temp under the intake are crusty and may be shorted out back in the harness. This is a can of worms!
HERE ARE MY QUESTIONS:
I have three wires left in the harness comming from the dash section. This is the 8 plug setup. (84 B23F non-turbo.
Left side top to bottom:
#1 thick brown (where doed it go)
#2 red (bypassed to alt) OK
#3 yellow (where does this go)
#4 black (pypassed to oil pressure) OK
Right side top to bottom:
#5 red (where does this go)
#6 not used empty
#7 not used empty
#8 yellow & blue stripe (where doed this go)

Also I have 2 wires from the Bosch Module that go under the motor
1 thin white wire
1 thick white wire with a red stripe
Where do these go and should I bypass these if they look bad
I need some guidance.
Ben