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    Thread: Check Engine Light Finally Comes to My Life: P0442

    1. Junior Member
      Join Date
      Jul 27th, 2017
      Location
      Seattle, WA
      Posts
      57
      Vehicles
      2012 VW GLI Autobahn
      02-14-2020 09:26 PM #1
      My car has been great since I bought it at 64k miles 3 years ago (now 90k) and I only replaced ignition coils/spark plugs and water pump.

      A few days ago I got my first check engine light in a long time. Plugged in OBDII sensor immediately and got P0442. It said it's most likely a loose gas tank cap. The cap seemed fine, but I still opened it and closed it back. Cleared the code. A couple days later, this time I got the cap icon on and warning saying the cap is open, even though it was not. I stopped, opened and closed again, kept driving. The warning disappeared.

      Today I got the check engine light again. Besides trying a new cap(the seal on it looks perfectly fine, btw), what are other options? Anybody ever experienced it?

      2012 GLI

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    3. 02-15-2020 08:37 PM #2
      Maybe charcoal canister? My buddy had a Kia that gave him a similar code. Ended up being a cracked charcoal canister. It wouldn’t let his take pressurize.


      Sent from my iPhone using Tapatalk

    4. Member jiffyjetta's Avatar
      Join Date
      Mar 13th, 2010
      Location
      Oregon
      Posts
      2,343
      Vehicles
      MK7 Golf Sportwagen, MK6 GLI
      02-16-2020 12:24 AM #3
      More than likely it is the purge valve. They're easy to replace.
      You can test it with vcds and a vacuum gauge, or just throw a new one in it.
      Tuned mk6 2.0t CBFA 6 speed ECU for sale. Launch control set @ 3800 & 8psi, immobilizer delete, cat delete, air pump delete. $300 shipped.

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