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P0446 Diagnostic Trouble Code Discussion for November 2012

EVAP Vent System Performance

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Trouble Ticket Help Requests for DTC P0446
Help Request Posted
2003 Mazda Miata 1.8L evap monitor wont ru VIN: JM1NB35333
P0446: EVAP System Vent Control Circuit Malfunction. ... here that came in with a p0446 code all monitors passed and mode 6 data ok we repaired the problem we found but cant get the evap monitor to run. We tested the gas cap and smoked the system. Cap was ok but smoke came out around leak detection pump wire co...
November 07, 2012