Rick's Free Auto Repair Advice

Posts Tagged: MAF circuit Low input

P0101 trouble code — diagnose and fix

How to diagnose and fix a P0101 trouble code What is a P0101 trouble code? A P0101 Mass Airflow (MAF) Circuit Range/Performance Problem relates to a problem with the mass airflow sensor. Common codes are P0101, P0102, P0103 and P0104. However, a P0101 code means the signal the computer is receiving is too far below the expected value. Most common causes of a P0101 code The MAF sensor measures the amount of air entering the engine and the air’s density. Based on the MAF sensor readings, the ECM calculates the … Read More

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