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 Audi S4FACTORY OEM SERVICE PROCEDURE
Fuel Injector Volume
NOTE:
Always use NEW fuel injector seals, moistened with clean engine oil. Take care not to damage the seals during installation.
Remove fuel injectors from intake manifold. See FUEL INJECTOR LEAKAGE .
- Hold fuel injector to be tested in measuring glass from fuel analyzer (VAG 1602). Operate remote control (VW 1348/3A) for 30 seconds.
- Output must be 150-170 ml (5.1-5.7 ozs.).
- If measured volume from one or more fuel injectors is above or below specified volume: Replace faulty fuel injector.
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.