Flunked Emissions; DTC P0440, 41 & 46

[LifeTech]

Originally Posted by algapb

Thanks for the feedback looks like I have my work cut out for me.

Many people have suggested the gas cap can be the cause of the problem. We did replace the cap when the check engine light originally came on. It (the cap) was tested at the emissions center and passed the test.

The emission test station merely plugged their computer into the car.

Is it possible the code just needs to be cleared or reset? Is there an easy way to reset ie.. disconnect & reconnect the battery?

Yu said the fuel cap was replaced?

I hope it was an OE Toyota cap!

Aftermarket Fuelcaps have been know to fail repeatedly.
I've seen this many times.

Also, often times, Inspection Station will test and fail a fuel cap even though it is fine. because their equipment is faulty or not calibrated well.

This I have seen many times also.

LT