Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1994 Porsche 911 Speedster, AutomaticFACTORY OEM SERVICE PROCEDURE
Fuel Pump Volume Test
- 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.
- Connect a test hose from fuel distributor to measuring receptacle. Disconnect 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).
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.