1999 JEEP OBD-II EVAP CODE P0443 HELP PLEASE

  • Tiny
  • jl2695
  • 1999 Jeep

Computer problem
1999 Other Jeep Models V8 Four Wheel Drive Automatic 175000 miles

My check engine light is on and the code is P0443 "EVAP Purge Solenoid Valve 1 Control CKT". I don't know exactly when the problem started because the bulb in my MIL was burned out and I didn't find out until I took it in for a smog check. I've got a 99 Jeep Grand Cherokee 4.7L and it runs fine. I replaced the purge solenoid and then disconnected the battery to clear the codes but the second time I started up the code came back. I'm thinking the PCM might be faulty but I can't find any info on how to check it and I can't find any schematics to help locate a possible wiring problem either. Anybody got a suggestion here?
Thanks

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Wednesday, April 28th, 2010 AT 2:25 PM

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