2000 Toyota Echo Q&A

2000 Toyota Echo Question: my check engine light is on ,has been for a while, now my car failed smog test

AIR INJECTION - filed diagnostic test said, mass air flow circut+ air temp.sensor circut -
Answer 1
you need to have circuits tested to start with and if good test sensors.are they unpluged or have corrision on them -
Comment 1
Agree with #1....you can clean the MAF sensor yourself. -
Answer 2
take out the MAF, clean it inside , the 2 resistors , spray in brake cleaner, use "Q" tip to wipe off, let it air dry, 10-15 minutes. then disconnect battery or reset codes with code checker, car should run fine and chk light out. I dont know anything about smog test, we don't have that here in Canada. SORRY -