Senior Bellringer 2/8/2021

The PCV valve

• is a fuel separating device

• provides a metered air flow for crankcase ventilation

• can be checked with a hand-held vacuum pump

• keeps the manifold cool

Catalyst monitor systems are set up to

• monitor the efficiency of the catalytic convertor

• see how rich or lean the vehicle is running

• monitor the temperature inside of the catalytic convertor

• both A and B

A normal idle air/fuel mixture would be

• 20:1

• 18:1

• 14.7:1

• 10:1

The ________ sensor controls the injected fuel mixture

• map

• O2

• TPS

• cooling fan

A map sensor provides information to the PCM by

• measuring engine vacuum

• metering the volume of air coming into the engine

• calculating air fuel ratio

• measuring throttle angle