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Vehicle make/model = 2000 PONTIAC GRAND AM GT
Mileage = 122000
Engine size = 3.4 V6
dash lights = CHECK ENGINE LIGHT
codes = P0449
tech = JK
question = I HAVE A CHECK ENGINE LIGHT ON IN MY CAR. IT IS FOR P0449. I
CHECKED THE VENT SOLENOID AND IT IS TURNING ON AND OFF. COULD THE
SOLENIOD STILL BE BAD? WHAT ELSE SHOULD I DO? THANK YOU






JK:
If the vent valve is functioning, it is POSSIBLE that the solenoid in the valve is functioning,
but the resistance is either too high or too low, and the PCM sees that and sets the code.
If you do not have any leak codes along with it, then i would say to check the resistance of
the wires between the pcm and the solenoid. No more than .2 ohm on each. Make sure
not grounded, and not shorted together. If the wiring all ckecks out, then i would replace
the solenoid and clear codes

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