Did you check voltage at the coil/control side of relay? The relay has two sides, the coil side/control, red wire is voltage, light blue wire with orange tracer is ground, controlled by the computer. During the initial prime, the computer grounds the blue wire for a few seconds, then during cranking, if no rpm signal, the ground will be removed.
The load side of relay is the line with arrow head. When relay is energized, that line with arrowhead moves to the other terminal and voltage goes to fuel pump.
If no rpm signal when cranking, no fuel pump action and no injector ground. With distributorless ignition, the rpm signal comes from crank sensor.
Wednesday, August 6th, 2014 AT 7:06 AM