I have a 1981 924 Porsche turbo 2.0. Im having a problem trying to start my car. I have tracked it down to the relay. The relay wont give power to the pumps,but if i jump the fuse box 30 pin to 87 pin i can get the pumps to work. only problem they wont stop pumping. so it over pressures the distributor. The relays i bought where "931 615 113 00" the dealer said it was the correct one for my car. i also have the base model relay "3 300 300". they both did the same things. nothing. I tried for kicks putting the fan relay 4 pinned on and it primes the cold switch and pumps. starts then dies. any suggestions? Really like the help . thanks.