What is this switch?

I believe so, OTR. The later model relays are different, they have an additional contact that acts as the resistor bypass circuit

Either same as or at least in function as this

The two on the far right, G and I do the same thing as the older ones--start wire and neutral safety switch

The one marked EGR/ SOL takes the place of the one on the older relay, which goes to the solenoid

Battery stud is the same as older relays

The added function (the difference) is the one at bottom left marked ballast, which goes to the coil+ side of the ballast resistor



You can troubleshoot this

Have someone twist the key to start, and wiggle the shifter from park/ neutral, or play with the clutch if a stick.

Probe the one marked G. It should NOT have voltage in start, if it does the neutral safety switch or wiring is bad

The one marked "I" is actually "start" and should have power in "start."

Battery stud should show power at all times.

Normally, the one marked "EGR / SOL" should be hot in start, and should power the starter solenoid.

Last, the BAL should also be hot in start

Thanks I ran a jumper wire from it to the coil and the engine started to turn over but still no fire.