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Engine guides and mods

Basic Smart Engine Diagram

Adapted from a picture by Gerald Drane to make it relevant to the Smart.

Modification Details






MAS - Mass Air Sensor - Measures the density of the air.

BCS - Boost Control Solenoid - Controls the bypass wastegate.

MAP - Mass/Manifold Absolute Pressure - Measures the air pressure.

ECU - Electronic Control Unit - Controls boost, fuelling and air intake.

EGR Valve - Exhaust Gas Recirculating valve -
Feeds hot exhaust air into the engine on start to quickly warm the engine.

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