What's now!

[Caen Fred]

I took the A/C off my 1972 auto 240Z. I took the rad out and the Compressor, I had to cut 2 wires at the fire wall, they are A/C related but I don't know exactly what they are in for? Yet they were connected to the canister in front of the oil filter on the A/C system. Took the A/C belt off.

And now, the miss doesn't start, it crank OK, I can here the engine running on as long as I keep the key on crank... but stall as soon as I put the key back to run?

I dont think there is any Hot wire from the one i cut, could it come from the belt being out and unloading the engine?????????

In one word..... help:(

[EScanlon]

Check your Black White wire at the Resistor. It sounds as though it has been removed or disconnected.

That it runs while you have the key in Start but not in Run is a clear indication of no power to the coil when the ignition switch is in the Run position.

Also check the wires to the coil, one of them may have popped off.

2¢

E

[sblake01]

I don't know how the wiring is set up since we didn't get Z's with factory air, assuming that yours is factory, until 1974. My guess is that the wires you describe are for the pressure cut out switch on the receiver/drier. However, I can't imagine that they would be wired in such a way that would stop the car from running if disconnected. That switch is supposed to turn off the compressor if the pressure drops too low to prevent damage to it. Since the wires just complete a circuit, I'd try putting the cut wires together after making sure that niether is a ground.

[sblake01]

After reading E's answer, I like it better than mine since I'm more used to dealing with later S30's.

[Caen Fred]

I will check them again... I noticed that the plastic fuel filter, the white one just before the pump is not filed to the top, but more half filed? Is it supposed to that way, I never check it before?

You're all are the best

[Marty Rogan]

I had a similar problem once. You could turn the key to start and it would start fine. As soon as you let go of the key once it started, it would immediately die. If you started the car and did not let the key go all the way back to the run position, it would stay running. I replaced the ballast resistor and it was fine after that. Try holding the key just off the run position and see if it keeps running. If it does, I would replacet the resistor.

Marty

[=Enigma=]

I bet you knocked a wire loose somewhere. Probably the same resistor wire E referred to.

[Caen Fred]

nothing loose, but unpluged everything and plug it back... and back on the road again ????????????? I guess I will never know

[EScanlon]

Plus ça change...plus ç'est la même!

E

[sblake01]

Or, plus de choses changent, plus qu'ils restent les mêmes. I think it means the same thing.