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The following trouble codes are usually associated with a mass air flow sensor: This trouble code can be retrieved with a scan tool. When the air flow sensor signal varies from the expected range, the PCM records a fault and stores the corresponding trouble code, illuminating the Check Engine light on the dash. In addition, a faulty mass air flow sensor might cause the Check Engine or Service Engine Soon light to come on.Ī problem with the air flow sensor could also alter the shifting pattern of the automatic transmission. As a result, a bad mass air flow sensor causes various driveability problems, including a no-start, stalling, lack of power and poor acceleration. Signs of automatic transmission problems.How to check the engine when buying a used car.How to get the best deal on a used car?.Buying a Used Car: 10 Common Mistakes to Avoid.
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