catalytic converter AUDI A4 1996 B5 / 1.G AFC Engine Multiport Fuel Injection System Servising Workshop Manual

24-12
Multiport fuel injection system, technical data

Engine code
AFC
Idle speed

Not adjustable, maintained by idle speed
control 650 - 750 RPM
RPM upper limit
Actuated by switching off fuel injectors 6200 RPM
CO content in front of Three Way Catalytic
Converter (TWC)
Not adjustable, controlled by ECM 0.2 - 1.2 Vol. %
Fuel pressure
At idle, with vacuum hose: Connected Approx. 3.2 - 3.8 bar
(46 - 55 psi)
Disconnected Approx. 3.8 - 4.2 bar
(55 - 61 psi)
Residual pressure
After 10 minutes with: Cold engine 2.2 bar (32 psi)
Warm engine 3.0 bar (44 psi)
Fuel injectors: Spray pattern: Approx. the same for all fuel
Pa
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jection
(MFI
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