Here’s one for the book. Out of the blue it will crank, but not start. Get out the service manual l got with the purchase in 2007. Start problem diagnosis:

No blink codes – good
Check ETC & throttle cable – good
Check EFI rail – NO FUEL
Look for damaged/streched wires or loose connectors – all goodk
Check for power to fuel pump: 12 volts initially then drops to 4.5 volt after 2 seconds.

Disconnect ECU harness, inspect, clean & re-seat – no fuel
Disconnect/reconnect battery to reset ECU – no fuel
Disconnect POWER relay, inspect, clean & re-seat – no fuel
Disconnect FAN relay, inspect, clean & re-seat – no fuel
Swap relays FAN to POWER & POWER to FAN – no fuel

Hot wire fuel pump: Apply 12v power to A & C pins (red+/brown-) – fuel pump doesn’t run.

So I’m thinking bad fuel pump. On a whim I reconnect the fuel pump 3-pin connector and turn key to on position – fuel pump runs, pressurizes and engine starts fine… WTF, but I’m happy.

I’m still puzzled why hot wiring the fuel pump didn’t work? I did notice the POWER relay now clicks twice, in short succession, compared to only once when the fuel pump wasn’t working. Maybe some can shed light on this change in relay operation?

Obviously something changed. My best guess is that with all the testing of the fuel pump, I burnished the male & female pins of the 3-pin fuel pump connectors, which cleaned up the electrical connection.

Time will tell.

P.S.

Even though it’s my first post, I thought I would share the experience.