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Fuel Pump Volume Test

WARNING: This page is about a different car, the 1998 Porsche 911 and 1997 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove hot-air blower at left rear of engine compartment. Disconnect fuel return line from fuel distributor. Catch any spilled fuel with a shop rag.
  2. Connect a test hose from fuel distributor to measuring receptacle. Disconnect Digital Motor Electronics (DME) relay from fuse/relay block. Jump terminals No. 30 and 87b together. See Figure . Fuel pump should operate. Allow fuel pump to operate for 30 seconds. Volume delivered into receptacle should be at least 1.8 pts. (.85L).
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