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P0443 Diagnostic Trouble Code Discussion for December 2004

EVAP Purge Solenoid Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0443
Help Request Posted
1997 Mercury Sable LS 3.0L Excessive Emissions VIN: 1MELM58S9V
P0443: EVAP Vapor Management Valve Circuit Malfunction. This vehicle failed an OBD-II emission test. The code is PO443 Canister purge valve circuit malfunction. The solenoid ohm ok and the red wire to the solenoid had battery voltage with key on. We also ohmed the wiring from solenoid to pcm, all ok. It looks like ...
December 06, 2004
1996 Mazda Millenia 2.5L MIL Lamp on VIN: JM1TA2216T
P0443: evaporative purge solenoid problem. We installed the used ECM and the same code returned 1 day later. In performing the diagnostics, it leads us to ECM replacement. I find it hard to believe 2 ECM's could have the exact same problem. Independently powering the purge solenoid showed it works and ...
December 21, 2004