holly projection wire color

Robert W. Hughes rwhughe at ev1.net
Tue Sep 21 15:22:20 GMT 1999


>  Dose any one know what color wires go to power,ground,temp sensor?
> I picked up a projection analog to put on my trailer puller, a 454 gmc dully.
> I know its junk btw its better than a q-jet.thanks
These are the colors for the 502-1 Pro-jection which is the early analog
version:
Power connector
bundle1
red	center hole of injector connector
red	center hole of injector connector
orange	outside hole of injector connector
violet	outside hole of injector connector

single wires
red	+12v switched
white	- side of ignition coil (tach terminal on HEI)

bundle2
red	fuel pump connector-A
green	fuel pump connector-B

Sensor cable
black	TPS-A
blue	TPS-B
gray	TPS-C these three are same length with pins installed, should 	
already be in TPS connector if unit is used
black	ground - this one should have ring terminal on it
brown	temp sensor
yellow	idle solenoid
pink	crank terminal of starter solenoid

polarity is important to fuel pump. Violet wire of cable goes to +
terminal on pump, green wire goes to -. Note that Holley cleverly use
different colors on each side of the connector.
-- 
Robert W. Hughes (Bob)
BackYard Engineering
Houston, Texas
rwhughe at ev1.net



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