Hey guys,

I discovered a big problem while working on my car last night. The neutral safety switch is not plugged in and there is nowhere to plug it in. It has the B/G wires, so im wondering what it plugs into/ what color wires it connects to.

Thanks

 

Are you talking about the safety switch located on the the clutch pedal for there is one as well connected to the transmission. If you're referring to the clutch switch, the B/G wire would receive voltage from the B/R wire which comes from the ignition switch.

 

Not all 86-87 have the cluch interlock switch. IF you can go to Start and the starter turns over...........good. You don't need the interlock switch.

 

The starter doesn't turn over at all when I try to turn the car on with the ignition switch. So both wires that connect to the safety switches B/G wires are B/R from the ignition?

 

They are both part of the starting circuit but the B/R wire is actually part of the ignition switch where as the B/G wire is an intermediate wire between the ignition switch and the B/W wire connected to the starter. So as stated before in another of your posts as well as this one again, the voltage with key to start goes from Black to Black/Red to Black/Green to Black/White to starter.

https://www.rx7club.com/2nd-generation-specific-1986-1992-17/car-not-starting-895190/

 

Just putting in a 86 non turbo engine into a 87Turbo chassis ,under normal circumstances, would have nothing at all to do with the start circuit. So. What harnesses have you removed/replaced?

 

The plug should look like the jpg out of the wiring diagrams below.

 

I know man. But The last guy who owned the car was a idiot and you should see what he did to the wiring in the car.... But either way, its not plugged in and there is nothing connecting it to the starting circuit.

 

Unknown wiring. Hmmm.

I'd find the ignition switch plugs located just a foot or so fwd of the ignition switch itself. I'd then find the plug that has a single B/R wire in it . NOTE there is another B/R wire but it's in a two socket connector and is to be ignored.

Then I'd get a long piece of electrical wire of any gauge, matters not. I'd attache this new wire to the B/R one in the single socket. Just a temp thing for now. I'd take the other end of this new long electrical wire and go to the engine bay left side near the trail coil area.

I'd get my meter out and put it on ohms. Put one end of the meters leads on the end of the new wire and put the other end of the meter lead to the large BLACK/GREEN wire in the electrical plug the BLUE jumper is/was conencted to. The meter should show continuity or something like 0.2 ohms or 0.4 ohms. If it does, then no interlock switch is needed for starting the car.

Blue jumper is in a jpg attached. Located underneath the trail coil area.

Or you could ignore the above and just remove the Blue jumper (shown in attached jpg). Then with meters neg lead on a good gnd, put the positive meter lead into the socket where the BLACK/GREEN wire is in the plug the blue jumper was connected to. Meter on dc vollts. Put the key to start and see if the meter reads batt voltage or not. If it does......no interlock switch needed.

So say you got batt voltage doing that. The get a piece of elect wire a couple of feet lone. Stuff one end into the elect plug the blue jumper was connected to. Now with car out of gear, touch the positive post of the battery with the other end of that new elect wire. Starter should turn over if the starter is good and has it's wiring installed right. If it does not start, you've a starter problem or wiring AT the starter problem. OR possibly another thing. There is one more elect connector b/t the BLUE jumpers connector and the starter. If that plug is undone then the circuit is open and the starter can't start like that. Have to connect that plug up.

Heck, I don't know. Hard to explain something like this that really would only take thirty minutes to figure out in real life. This is not real life on this forum.