LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Evap code P0441

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Old Oct 29, 2007 | 05:54 PM
  #1  
Spiers's Avatar
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Evap code P0441

Okay I previously had code P1441. So I took off the canister, blew out the line from the vaccum switch to the canister with compressed air...and I put a new canister, vaccum switch, purge solenoid, and also replaced the hose that goes from the solenoid to the switch. I cleared the code and now 2 days later I have P0441. What I've found in a search says it's a bad solenoid, but I just replaced it with a new one, so..?? What else could it be??

Thank You
Old Oct 29, 2007 | 06:28 PM
  #2  
96camaroSS's Avatar
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From: Cedar Rapids, Iowa
For the sake of being thorough you could check the coil resistance of the new solenoid. I'm not 100% sure what the resistance should be. I believe approximately 15-20 ohms. A service manual can tell you for sure.

After that, you might check the connector itself on the harness to make sure a pin hasn't pushed out of the connector causing an open in the circuit.

If that all checks good, check for an open in the circuit between the harness connector and the pcm. You'll again need to consult a service manual to see which connector and pin location this wire goes back to.

Hope this helps.
Old Oct 29, 2007 | 06:28 PM
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Check the 15A "actuators" fuse in the fuse box under the hood. If you do have to check the PCM connection, there's a pin out of the connectors here http://shbox.com/1/4th_gen_tech2.html#1995_pcm_wiring, about 1/4 the way down the page. Look at connector D.

Last edited by ricehammer; Oct 29, 2007 at 07:00 PM.
Old Oct 30, 2007 | 12:25 PM
  #4  
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Have you checked the vacuum hose from the solenoid to the side of the throttle body for cracks? Have you verified that you have the two hoses on the correct connections on the purge solenoid?

If there was an electrical problem with the purge solenoid, he should also be getting P0443.
Old Oct 30, 2007 | 02:10 PM
  #5  
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What Fred says. I ran into the same problem after replacing the purge solenoid. I left a vacuum line disconnected.
Old Nov 3, 2007 | 12:15 PM
  #6  
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Ahhh silly me. I finally got a chance to take a look and immediatly realized the problem. Somehow I managed to forget to hook up the top vaccum line on the solenoid. Fixed now. Dee dee dee
Old Nov 3, 2007 | 03:03 PM
  #7  
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Originally Posted by Spiers
Somehow I managed to forget to hook up the top vaccum line on the solenoid. Fixed now. Dee dee dee
It happens. I had the same code, turns out I ripped one of the evap hoses. Replaced it and no more code.
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