The Porsche 930 Turbos with CIS Fuel Injection uses two roller-cell Fuel Pumps. The Front pump GFP-216 ( 0 580 254 984) and the rear pump GFP-214 (0 580 254 979) both pumps run off of ONE 16 AMP German ATG Fuse, and two Bosch Relays originally. China is now one of the suppliers of these relays. They do NOT hold amperage loads and get very warm Replacing the forward fuel Pump with a -044, FP-200 (0 580 254 044) these supply fuel very well HOWEVER they are dangerous as they can not handle the needed higher amperage needed. We have experienced two fires in 930 Porsches with an UpGraded -044 fuel pump and retaining the stock electricalIsystem in as perfect fuse/relay system. I have replaced the ancient Porsche ATG fuses with all new ATO blade fuse systems from Blue Sea and replaced relays with "mini" 5 blade push-in relays from Bosch and now have cool running electrical system and no more fuel supply problems!
Garden Grove, California