I have a LC9 in my 70 C10 Chev. The bends in the headers made it necessary to remove the can and rubber sleeve from 3 plugs to keep from hitting. There is an least .5 in gap from wire at spark plug to header on the 3 plugs
I am having loss of power and stumbling when in high altitudes - above...
Thanks First answer I've had that makes sense.
I have searched this and several have stated that the PCM wants 12v on this wire to stay locked. The tech told me just the opposite - that 12 volts would unlock. Any ideas?
I installed a connect and cruise in my 70 Chev C10. It has LC9 engine and 4L65E tranny.
One of the wires in the harness goes to the brake switch to unlock the TCC which I have not hooked up. I have been told that 12v up the wire causes an unlock. Documentation states its for smoother operation...