air flow meter fault
check the wiring going into the connector on the sensor at the airhorn. pull the wires and make sure none are broken, there is a strong chance one is. I dont mean just pull it a little bit, i mean pull it hard, if the wire is broken you will know by the way the wire covering stretches or in alot of cases the wire pulls out.
This was a big problem with these systems on the cat's and these mitsu's are the same.
If there is enough wire left you can solder it back together.
Then clear the code if it doesnt self clear and wallah! your done :o)
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