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On your fuel pump and relay question. Very first thing to have is your fuel injection schematics, do you have these ? The physical location of my pump is on front of the car under the gas tank behind the suspension on the suspension assembly. Better to access this by removing the front passenger tire, this way you can see the old location. It is best to check another car out about exact mounting location if you cannot find it. My unit has rubber mounts that attach to the pump bracket and suspension bracket, if you are incomplete be creative but do not damage anything to do this, the objective is to place the pump closest to the fuel tank outlet where we have our strainer located this way the fuel pours in the pump to prime it automatically and not cause the pump to suction hard to get gas in there . The P or D letter on the pump stands for pressure so that hose would go to the pressure in of the pressure regulator (at the engine) will go here. the R stands for return so the pressure return on the left side of the engine will attach here. The electical part of the pump : Negative or minus sign (-) goes to a good earth ground.. The positive goes to a relay that I beleive shuts down after a few seconds by its own mechanism or by the computer controlls. I have to look this up unless somebody else clarifies this. The german relays are standardized with connection numbers on the relay. I forgot what these are I have to look it up. If you hold a german relay in your hand, the blade connections have numbers next to them , some numbers mean power to the relay others mean power of component to be switched on. If you can read electical symbols, some relays have pictures on the side with a "map' or schematic of these. Send me an e-mail on waht relays you have and I will clarify the Bently scat and the relay connectors corresponding when I get home to my book. These relays get power from a fuse that gets power when you turn the key this switches the pump or whaterever Items are relayed. Relays are used to protect your switches and wires from burning up from too much power. The pump relay is on top of the steering coulumn on older cars and on newer cars the relays are a part of the fuse box, just unscrew , pull it down and you will see the sockets where they go. The brain relay I beleive is located next to the regulator under the back seat. If you have some knowlege or practice on electrical on cars , you can make all of these connections up. It just takes understanding of why things are wired in a car then everything will fall into place, that is why some guys are able to do custom electrical jobs. E-mail me tonight at home at martinezl@icanet.com.mx if you still need to clear up some relay stuff, I will have my book and a relay in hand. Lots of these can be found in Mercedes or BMW's , just under the hood (I get many good ones). LEON MARTINEZ 1969 SQUAREBACK EFI/AUTO SAN DIEGO AND TIJUANA ------------------------------------------------------------------- Too much? Digest! mailto:type3-d-request@vwtype3.org Subj=subscribe