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[ricardo]

New to this site and not sure what I am doing or how to post a problem

[ricardo]

Performed test mentioned by sandbox bouncer.

Test 1 There is no yellow wire going to my starter. It appears someone along the way replaced some of these wires. After market connectors.

Test 2 Turned key on and moved flap in air intake. Pump did not go on but heard clicking sound from the double relay under the battery.

Additional information
There is a yellow wire that is in the cable harness for the 12 point connector for the relay board that is not connected to anything. I traced the wire and it appears to go to the double relay under thr battery.

[Dave_Darling]

Test 1 There is no yellow wire going to my starter. It appears someone along the way replaced some of these wires. After market connectors.

Time to trace those wires. There should be a yellow wire that comes from the ignition switch (by way of the relay board) that connects to one of the flag terminals on the starter. That's what tells the starter to crank.

Test 2 Turned key on and moved flap in air intake. Pump did not go on but heard clicking sound from the double relay under the battery.

If the double relay clicks, that is a good sign! It sounds like the problem is somewhere in the electrical circuit between the relay and the pump. Unplug the pump and the relay, and check the "hot" (red) wire for connectivity with the relay socket. Also check that the brown wire has a good ground.

Additional information
There is a yellow wire that is in the cable harness for the 12 point connector for the relay board that is not connected to anything. I traced the wire and it appears to go to the double relay under thr battery.

That yellow wire should be going to the starter, I believe. Unless someone has messed with things pretty extensively.

Here is a link to some wiring diagrams. Some people find the "waterfall" diagrams for the 74+ cars confusing, but I find them useful.

There should be a white wire in the fuel injection harness that goes from the dual relay to one pin of the four-pin connector on the relay board. That wire carries the "start the car" signal to the dual relay, triggering the pump.


It sounds like someone who didn't know what they were doing did some wiring work on the car. You will want to start tracing wires to figure out what they did. Take lots of notes and pics.

--DD