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Re: Error Code 446???
P0446 - "This DTC tests the evaporative emission (EVAP) system for a restricted or blocked EVAP vent path. The control module commands the EVAP canister purge valve ON and the EVAP canister vent valve ON. This allows a vacuum to be applied to the EVAP system. Once a calibrated vacuum level has been reached, the control module commands the EVAP canister purge valve OFF and the EVAP canister vent valce OFF. The control module monitors the fuel tank pressure (FTP) sensor for a decrease in vacuum. If the vacuum does not decrease to near 0 inches H2O in a calibrated time, this DTC sets."
just check for blocked/damaged evap vent valve/air vent hose and if nothing there then maybe connections @ ftp sensor
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06-25-2004, 02:21 PM
