check engine light on displaying p0440, p0446
I have check Engine light problems since last 11/2 years. Change sensor in Tank, gas cap, and recently changed charcoal canister. Light wasn't there for last 10 days and now same problem starts again.......
Checked system & code read EVAP System Failure (Small)
MIL/CEL usually comes on and pulls the same code when I am about to run out of petrol.
Both the check engine light and track auto light was on for last year, per Lexus, needed catalytic converter and oxygen sensor replace - $4000 to replace by Lexus
This started happening after a tune-up at a local Meineke. They basically gave up on finding the leak. I've had to play some games to pass inspection (reset ecu, complete a drive cycle, get it inspected prior to light coming back on).