2005 Prius 170k miles. Car threw code P0446. Great, a very generic evap leak. Well I took the good ol' techstream out and ran all the EVAP tests I could. Every test came back nearly perfect except the one labeled "CCV". Min:0.0s Max: 3.8s. My test resulted in 3.9s. I had a look underneath the car and couldn't find or hear any vacuum leaks while the tests were being done. Is this a sign of a sticking valve? I think I might just replace it but I'm having a hard time finding it and what part # it may be. Any help is appreciated
Welcome to PriusChat!! Will assume that you didn't find this thread helpful : P0446, Techstream TBP Fail, and CCV Replacement | PriusChat Have you already checked the low hanging fruit, like the gas cap (2 clicks) and associated o-ring? (some have used spit or silicon)
