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

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
AIR INJECTION - filed diagnostic test said, mass air flow circut+ air temp.sensor circut
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
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you need to have circuits tested to start with and if good test sensors.are they unpluged or have corrision on them
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
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