EVAP Purge Solenoid
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Northstar Engines and System Technical Discussion Discussion, EVAP Purge Solenoid in Cadillac Engine Technical Discussion; My SES light is illuminated and giving me DTC P0443. This gives me the following DTC: EVAP Purge Solenoid Valve ...
  1. #1
    UNKUT's Avatar
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    EVAP Purge Solenoid

    My SES light is illuminated and giving me DTC P0443. This gives me the following DTC:

    EVAP Purge Solenoid Valve 1 Control Circuit

    Now my question is..... where exactly is the "Purge Solenoid" located? Is it the same thing as the "Evaporative Emissions Canister Purge Solenoid" on top of the N*? I notice the DTC also says "Valve 1 Control Circuit". Is this all within the same unit? To be honest I've spent hours searching and still do not have a clear idea of exactly what part to replace to get rid of this problem! If anyone has knowledge in this area please post up..... I'm pullin my hair out over here!

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    UNKUT's Avatar
    UNKUT is offline Cadillac Owners Fanatic
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    Re: EVAP Purge Solenoid

    Ok so I'm guessing the picture below is of the EVAP Purge Solenoid, correct? Now would replacing this correct my P0443 code? Or is there something I'm missing? The whole "Valve 1 Control Circuit" part of the code has me thinking twice. Anyone???

    If this is the culprit, I looked into the replacement part at RockAuto and it has 2 seperate ones. Would it be ACDELCO Part # 214646, or ACDELCO Part # 2141363??? I have the 2000 DTS.







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    Ranger's Avatar
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    Re: EVAP Purge Solenoid

    Is it the same thing as the "Evaporative Emissions Canister Purge Solenoid" on top of the N*?
    Yes, one in the same. I think that is it in the picture, but I don't know why it says "valve 1". I didn't think there where more than one.

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    UNKUT's Avatar
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    Re: EVAP Purge Solenoid

    Well today I dug into the project and when removing the Evap Solenoid to clean it I noticed one of the two wires had seperated. Since a new connector was $35 I repaied my broken one and it got rid of the SES light and the P0443 code..... FINALLY!!! Now onto fix the EBTCM......

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    STSS is offline Cadillac Owners Enthusiast
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    Re: EVAP Purge Solenoid

    Good find... Free fixes are great!

  7. #6
    dkozloski's Avatar
    dkozloski is offline Cadillac Owners 10000+ Posts
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    Re: EVAP Purge Solenoid

    Exactly like the code stated, you had a problem with the circuit and not the valve. Close reading can save you time and trouble. When you see the word circuit, think connectors and wiring.
    Don't mess with Binky Bear!


  8. #7
    flchipper is offline Cadillac Owners Member
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    Re: EVAP Purge Solenoid

    was that soleniod on top of intake?

  9. #8
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    Re: EVAP Purge Solenoid

    Quote Originally Posted by flchipper View Post
    was that soleniod on top of intake?

    In your Deville the EVAP purge solenoid is the cylinder with vacuum line and electrical connector which extends from the back (driver's foot) side of the throttlebody.

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