An electric SAI pump is controlled by ________.
A) the PCM
B) a vacuum switch
C) exhaust pressure
D) manifold vacuum

Question

Quizplus · Accepted Answer

The electric SAI (secondary air injection) pump is controlled by the PCM (powertrain control module) which receives input from various sensors such as the oxygen sensor and mass airflow sensor. The PCM sends a signal to the electric pump to turn on and inject air into the exhaust system to reduce emissions.

An Electric SAI Pump Is Controlled by ________