22 Ohm Resistor Just so you don't blow the LED I believe radioshack sells LED's that take 12 Volts, also LED's will only light when the polarity is right

 

Messed around all day with Multi-meter and had my uncle who is mechanic come down to gimme a hand. Traced wires back to the fuse panel , swapped out the Relay for the Air Pump and now the Noid Lite lit perfect everytime on all 8 cylinders , so now their getting the signal , i just have to get my cousin to bring his injector cleaning set-up down , clean em and it SHOULD fire right up ...