Quote:
Originally Posted by JFP in PA
OK, P0446 indicates that the EVAP canister shutoff valve is operating below flow limits. Normally this is caused by the purge air line (#3 in diagram) being blocked. Normally, this can be fixed by disconnecting the line at both ends and blowing compressed air thru it to clear it. If this line is clear, the only other possibility is that the flow thru the EVAP canister carbon bed is blocked, which requires replacing the canister.
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Thank you, JFP!
Before I hit "buy" on a replacement canister: no chance I've got a problem at the purge valve? It's definitely the canister? (I've blown the lines already)
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