Stratus L4-2.4L DOHC (1995)
Canister Purge Solenoid: Description and Operation
EVAP Purge Solenoid Circuit Failure Code
NAME OF CODE:
Evaporative Purge Solenoid Circuit
WHEN MONITORED:
With the ignition key ON and the engine running.
SET CONDITION:
After the arming conditions are satisfied: not powering down, not already in limp-in, time since the last solenoid activation>72 micro seconds.
The PCM will set a trouble code if the actual state of the solenoid does not match the intended state.
THEORY OF OPERATION:
The EVAP purge solenoid is mounted on the right side shock tower. Its purpose is to regulate, by means of a duty cycle, the flow of vapors from
the EVAP canister to the throttle body. The PCM controls the time the solenoid is ON during a duty cycle. During off idle operations (higher
flows), higher percentages of duty cycle are used. At idle (lower flow), lower percentages of duty cycle are used.
POSSIBLE CAUSES:
-
Open or shorted control circuit
-
Open fused ignition switch output circuit
-
Open or shorted solenoid control coil
-
PCM failure
-
Connector wires or terminals
