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Check your EVAP canister purge valve connection. It's a small plastic component next to the throttle body. Make sure the sensor connection is tight. This is from a 3G TL but it's in the same place.
Hello, how did you solve the P145C error?
I have this on my 2008 TL, along with P0443... the warning lights alternate between check gas cap, and that goes off and check engine light comes on, and vice versa.
