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Mark Crowe Mark Crowe is offline
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Join Date: Apr 2007
Location: South Africa
Posts: 83
Fuel Pump relays- differences

I am trying to ascertain whether I have the correct relays in the correct places in my 77 930. I have one red relay in the front fuse box, right at the back of the fuse box, close to the windscreen. In the rear fuse box, only 1 black relay. In photos of various other Porsche's, including Turbo 3.3s, I see some have a red relay in the rear, sometimes with a black one, sometimes not, and some have 2 in the front box, again others not.

What is the difference in function between red and black relays? Should I be running another red in the front or the rear?
Old 07-30-2007, 01:19 PM
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