MAF Frequency Codes
P0102: Mass Airflow (MAF) Sensor Circuit Low Frequency
P0103: Mass Airflow (MAF) Sensor Circuit High Frequency
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What's the cause of these codes and how can I fix it? I have no screen on my MAF, but it's been like that for 6-7 months.
Being you are getting both high and low errors I'd first check for a blown fuse, then connector that plugs wires into MAF, bad pin in connector or a melted or broken wires.
Use a scanner and scan MAF in lbs/min, at udle it should be seeing about 3 lbs and at WOT about 30 lbs.
If you scan for raw freq, it would be about 2,000 Hz and about 10,000 Hz during WOT.

