System Purpose - Toyota Supra 1990 Manual

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EMISSION CONTROL SYSTEMS -

System Purpose

SYSTEM PURPOSE

Abbreviation

Positive crankcase ventilation

Reduces blow-by gas (HC)

Fuel evaporative emission control

Reduces evaporative HC

Reduces HC and CO

Exhaust gas recirculation

Three-way catalyst

Reduces HC, CO and NOx

Electronic fuel injection *

Regulates all engine conditions for

reduction of exhaust emissions.

For inspection and repair of the EFI system, refer to EFI Section.

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