97 Ranger engine light came on. I retreived the error code and it is the EVAP system. Error code is 443 which indicated the Canister Purge Valve (Soleniod). So I replaced it but the same error code keeps returning. Any Ideas, I am confused.... Thanks


Asked by Apr 01, 2014 at 12:06 PM about the 1997 Ford Ranger Splash Extended Cab Stepside 4WD SB

Question type: Maintenance & Repair

1 Answer

Tracy Hooks

To properly diagnose and repair any error code, don't simply change the part and expect all to be well. It doesn't work that way. The P0443 DTC indicated a problem in the Evaporative Emissions System Purge flow System - not a failed part. You will definitely need a scan tool that can not only read PIDs but also has the ability to activate and deactivate computer outputs - like the Evaporative Emissions System's vent solenoid. Diagnostic Trouble Code (DTC) P0443 indicates a failure in the EVAP canister purge valve circuit. Possible causes: VPWR circuit open EVAP CANISTER PURGE open EVAP CANISTER PURGE shorted to PWR GND or SIG RTN Damaged EVAP canister purge valve Damaged PCM

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