Transmission Controled Spark

[stynchrr]

What is this and how is it hooked up? I think i may have the wire for this in my 72 swb. Does this system get power for a brown/white wire on the engine harness?

Thanks

[pjmoreland]

TCS uses a speed switch in the transmission and an engine temperature switch to control a time-delay relay mounted on the inside of the firewall near the horn relay to turn on and off a solenoid valve that disables vacuum advance to your distributor.

Power is supplied by a brown/white wire that comes from the square fuse panel connector.

Two wires plug into the TCS solenoid valve (mounted on the intake manifold): brown/white & dark blue.

The brown/white and the dark blue wires then run through the firewall to the time-delay relay.

A black wire runs from the time-delay relay back through the firewall and connects to the transmission switch.

A second dark blue wire runs from the solenoid valve to a temperature switch mounted in the passenger side head.