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.
1985 Porsche 944 AutomaticFACTORY OEM SERVICE PROCEDURE
Full Load Enrichment
- With engine at idle speed, pull off plug on idle switch. Engine RPM should go up to 1300 RPM and ignition timing should be 12° BTDC. Pull off plug on throttle switch (full load contact).
- Bridge connections on plug with a jumper wire. Engine speed should drop by approximately 100 to 200 RPM and ignition timing will be retarded approximately 4 to 8°. If nothing happens, check wire between throttle switch plug and control unit plug for breaks according to wiring diagram.
Factory Service Tools
Use the Manual With the Right Hardware
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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.