Missing Relays, Should it start without the relays? |
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Missing Relays, Should it start without the relays? |
fizz74 |
Jun 18 2020, 10:18 AM
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#1
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Newbie Group: Members Posts: 3 Joined: 27-January 20 From: uk Member No.: 23,867 Region Association: England |
Hi
I have recently become the proud owner of 1973 914 1.7. It does need abit of work and I am a newbie to the 914. After some tinkering, I managed to start the Porsche and get it running although not for long. It sounds like fuel starvation and has a very noisy fuel pump. When I popped open the regulator plate for inspection, I noticed a few of the relays were missing, the Power supply relay and the Fuel pump relay? I've not had the chance to get the multi meter on it as the 914 is under covers and its been raining here in the UK for the past few days. I'm wondering how the 914 started without the Fuel pump relay? The fuel pump clearly works because I can hear it and the 914 started and ran, I actually drove it(on a private road)?? Any help would be much appreciated. Thanks |
Jonathan Livesay |
Jun 18 2020, 11:59 AM
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#2
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Senior Member Group: Members Posts: 742 Joined: 13-March 10 From: La Canada CA Member No.: 11,461 Region Association: None |
Is the fuel pump in the engine compartment? It should be on the firewall below the engine shelf on the passenger side. When you find it check if it is connected by the original connector or just with a + wire and a ground wire. If it runs without the fuel pump relay it's got to be the latter. You only need the 2 middle relays for the car to run. The one that is there is the main power relay the other (missing) is fuel pump, the two end ones are for rear window defroster and heater fan in the engine compartment.
I would see if I could find the correct pump wires, the original connector should be a white plastic cylinder with two wires. It's about 1/2 inch in diameter and almost 1 inch long. If you find it and it's not plugged in try taking the other wires off and plugging in the original connector. Then put a relay in the empty middle socket and see if it runs. |
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