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Registered
2000 DTS / 2005 STS
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380 Posts
Discussion Starter #1
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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Registered
2000 DTS / 2005 STS
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380 Posts
Discussion Starter #2
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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Super Moderator
2010 DTS
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87,544 Posts
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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Registered
2000 DTS / 2005 STS
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380 Posts
Discussion Starter #4
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......:bomb:
 

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Premium Member
2006 STS V8 AWD, '95 Ford Ranger
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29,091 Posts
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.
 

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Administrator
2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
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71,006 Posts
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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