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P1443 code and fix

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I've been dodging fixing an emissions code, P1443.

 

Dove into it today, research showed it was most likely the drain valve, and if you connect the green connector under the dash, all solenoids and the fans are supposed to cycle.

 

Was getting power, it didn't cycle, I managed to get it apart and the round slider was stuck in the bore. Wasn't rust, the plastic in the bore had swelled a bit.

 

Poked around, found the hex part of an old clutch pushrod from a '67 GTO I had years back was a tight fit in the loose part of the bore.

 

Chucked it in the drill press, bored the bore just a skosh, it's like new!

 

 

Dave

Congratulations.

 

Drain what? And what oracle do you consult when you do research?

 

Scomber Sanctus

  • Author

There is hose/filter/valve assembly just ahead of the rear bumper on the right side, part of the evap system.

 

I just followed the diagnostic in a downloaded manual.

 

Dave

  • Author

Forgot I don't have a sig- 2003 LL bean with the H6.

 

Dave

God im envious. I had a po443 evap code that took me 2mths, a new ecu, and alot of work to find my problem. Turned out a mouse ate thru the drain valve to ecu wire. This shorted out the ecu (opened it up and one of the ic's were toasted). I didnt even try to fix the wire. just ran a new one from the ecu back to the drain valve. Glad yours was an easy fix.

  • Author

I hate mice.

 

So far only critter that has chewed on my wires is a groundhog the dog chased under the car, and it climbed all the way up to just under the windshield.

 

I think since I park outdoors and there is a big cozy garage nearby, they much prefer the garage.

 

 

Dave

  • Author

Valve still works, code is back.

 

So, more than one thing was broken...

 

 

Dave

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