pulled code pcm0443
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Northstar Engines and System Technical Discussion Discussion, pulled code pcm0443 in Cadillac Engine Technical Discussion; P0443 - EVAP Purge Solenoid Valve 1 Control Circuit I orderd a EVAP Purge Solenoid and replaced reset light and ...
  1. #1
    Mrjb9475 is online now Cadillac Owners Fanatic
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    pulled code pcm0443

    P0443 - EVAP Purge Solenoid Valve 1 Control Circuit I orderd a EVAP Purge Solenoid and replaced reset light and came back on does anyone know what else can cause this? car is running fine thanks for the help

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  3. #2
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: pulled code pcm0443

    Check the connector and circuit ground for the solenoid. Because this is part of the entire fuel tank pressure/vacuum and emissions vapor purge system, you should check the integrity of the gas cap, filler neck, and vapor hosing to the evap canister.

    According to the '02 Seville factory manual if the system is repaired it will clear the light after 3 successful start-run cycles and the code will go to History, and that will clear after 40 successful cycles. The light can also be turned off with a GM Tech-II scan tool. There's also something in that diagnostic concerning an internal driver which must receive proper voltages. Sounds like power or ground problems.

  4. #3
    Frans96SS is offline Cadillac Owners Member
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    Question Re: pulled code pcm0443

    Where is this valve located? My car is having the same problem and is also idling high.

  5. #4
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: pulled code pcm0443

    Hard to say without knowing your model and year. Probably on the rear cam cover. Please update your profile.

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