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Engine Control - Overview - m3 BMW M3 E46

Step-by-step instructions on "Engine Control - Overview - m3" for BMW M3 E46 (1999–2006). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

MS S54

Purpose Of The System

System Components

Principle of Operation

Power Supply - Testing

Power Supply

Pre-Drive Check

Post Drive Check

EDR Safety Concept - Emergency Running Programs

Stage 1 (Emergency Operation with a Throttle Position Sensor)

Stage 2 (Emergency Operation Via Idle Air Actuator)

Stage 3 (Emergency Operation With Open Throttle Valves)

Stage 4 (Emergency Operation With Internal ECM Fault)

Emergency Operation Functions

Air Management

Crankcase Ventilation System

Throttle Position Sensors - Testing

Idle Air Actuator - Testing

Tools and Equipment

Workshop Hints

Fuel

Fuel Supply

Fuel Pump and Sending Unit Access

Draining Fuel Tank

Fuel Pump/Pressure Regulator - Testing

Fuel Injectors

Crankshaft Position/RPM Sensor

Camshaft Position Sensor (Cylinder ID)

Engine Coolant Temperature

Emission Optimized - Ignition Key Off

Knock Control

High Voltage - Danger

Ignition System Diagnosis

Spark Plugs

Knock Sensors

Evaporative Emissions

ON-BOARD REFUELING VAPOR RECOVERY (ORVR)

Exhaust Emissions

Phase 1 - Reference Measurement

Phase 2 - Leak Detection

Test Results