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8
checking the above components, monitoring key engine sensors,
watching for engine misfire, and monitoring fuel demands.
Non-Continuous Monitors – Unlike the continuous monitors,
many emissions and engine system components require the
vehicle to be operated under specific conditions before the
monitor is ready. These monitors are termed non-continuous
monitors and are listed below:
(1) EGR System
(2) O2 Sensors
(3) Catalyst
(4) Evaporative System
(5) O2 Sensor Heater
(6) Secondary Air
(7) Heated Catalyst
(8) A/C System
2.5 OBD II Monitor Readiness Statuses
OBD II systems must indicate whether or not the PCM’s monitor
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