Question

the ______ continuously monitors either crankshaft speed or possibly combustion chamber feedback that indicates misfiring cylinders.

a. misfire monitor
b. secondary air system monitor
c. oxygen sensor monitor
d. heated catalyst monitor

Explanation:

The misfire monitor's function is to continuously check for misfiring cylinders by monitoring crankshaft speed or combustion - chamber feedback. Other monitors like secondary air system, oxygen sensor, and heated catalyst monitors have different functions related to air - fuel ratio, emissions control, etc.

Answer:

A. Misfire monitor