July 28, 200916 yr The error code P0446 is a code showing an electrical problem with the circuit to that valve. You stated you saw 14 volts getting to the coil of the solenoid and if I understand correctly you saw 26 ohms for the coil resistance which should be correct I think. If these things are correct then there must be a bad connection to the coil somehow.
October 11, 200916 yr So I think I FINALLY have the error code licked, go for a run & boom, on comes the light again Check the code and now it's P0443! Getting frustrated with this EVap stuff!
January 28, 201313 yr I know it's been quite awhile but I wanted to finish off my P0446 code experience. After checking & cleaning, or replacing, many of the parts and areas advised to, it ended up being a serverly corroded wire connection to the O2 sensor!! Cleaned it all up and it has been running without the light coming on for months.
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