My '99 Camry (60K mi) keeps showing a "check engine" light.
Two weeks ago, my mechanic replaced the oxygen sensor.
Came back on two days ago, with the computer code P0446, "Evap system", which my mechanic can't fix. He says it's fine to drive but that it should be taken care of---something to do with emitting gas vapor, and the vent system?
Can anyone explain this in plain english? How important is this? Finally: I'm afraid I paid $$ for the oxygen sensor when perhaps this was the problem that triggered the engine light? Are the two related, and did I get fleeced?
Thanks for any insights!