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JR

JR 8/9/2011

2000 Lexus GS300 Base 6 Cyl 3.0L

Engine

I am getting p0446 on check engine light. what does this mean

check engine light is on

2 Answers


Jimm

Jimm 8/9/2011

P0446 = Evaporative Emission Control System Vent Control Circuit Malfunction

A code P0446 could mean one or more of the following has happened:

Faulty vent valve
Open, short or excessive resistance on Vent valve control circuit
Blockage of vent valve
Bad PCM

Possible Solutions:
With a P0446 OBD-II trouble code, here are some things to try:

Replace Vent valve
Repair open, short, or resistance problem in control circuit
Repair open, or short, or resistance problem in power circuit
Replace PCM

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yboy82

yboy82 8/9/2011

P0446 means Evaporative Emission Control System Vent Control Circuit Malfunction. This trouble code is triggered when the PCM senses an irregularity of the anticipated voltage or an open in the purge control valve circuit.

Here are the possible cause of P0446

•Short or open in the vent valve control circuit
•Clogged to vent valve
•Defective vent valve
•Defective PCM

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