P2420 and P0441 codes - Toyota Yaris Forums

jkonrath · 03-07-2010, 06:07 PM

Hi all,

My 08 LB has been regularly throwing P2420 and P0441 CEL codes. I was in a semi-serious front-end collision last spring (see here), and got everything repaired, and the problem started right after that. They replaced the front wiring harness, intake manifold, air cleaner box, and much more when they fixed the car.

I've left the car with the body shop and they couldn't figure it out. They advised me to go to a dealer, but the closest dealer won't do anything unless a master tech can look at it, and of course he's only in the shop from like two hours after I get to work to about an hour before I leave work, and I commute, so it's a major logistical PITA to get it looked at.

I've noticed no fuel economy changes or other issues. I have a ScanGauge II so I can clear the codes, but they come back within a couple of days.

Anyone have any quick ideas on what could be wrong? I mean, I'm guessing it could either be something easy (a wire not hooked up, missing vac hose) or something major (evep canister) but I don't know where to begin to look. Can anyone point me to a good resource to track this down?

Thanks,
Jon

P.S. It's not a loose gas cap.

03-07-2010, 06:07 PM	#1
jkonrath Drives: 2008 Yaris Liftback Join Date: Sep 2007 Location: San Francisco, CA Posts: 4	P2420 and P0441 codes Hi all, My 08 LB has been regularly throwing P2420 and P0441 CEL codes. I was in a semi-serious front-end collision last spring (see here), and got everything repaired, and the problem started right after that. They replaced the front wiring harness, intake manifold, air cleaner box, and much more when they fixed the car. I've left the car with the body shop and they couldn't figure it out. They advised me to go to a dealer, but the closest dealer won't do anything unless a master tech can look at it, and of course he's only in the shop from like two hours after I get to work to about an hour before I leave work, and I commute, so it's a major logistical PITA to get it looked at. I've noticed no fuel economy changes or other issues. I have a ScanGauge II so I can clear the codes, but they come back within a couple of days. Anyone have any quick ideas on what could be wrong? I mean, I'm guessing it could either be something easy (a wire not hooked up, missing vac hose) or something major (evep canister) but I don't know where to begin to look. Can anyone point me to a good resource to track this down? Thanks, Jon P.S. It's not a loose gas cap.