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  • How do you bypass the MAF sensor on a car?

  • You can bypass the MAF sensor, and allow the O2 sensor to calculate how much air is needed. Turn off the ignition of your vehicle and open its hood. Disconnect the negative battery cable (red). Locate the mass air flow (MAF) sensor on the air intake.

  • How do you remove a mass air flow sensor?

  • Turn off the ignition of your vehicle and open its hood. Disconnect the negative battery cable (red). Locate the mass air flow (MAF) sensor on the air intake. Grasp the wire harness that connects the MAF sensor to the power unit in the engine compartment and gently pull it out of the MAF sensor. This will disconnect it.

  • What does the mass air flow sensor do on a car?

  • There is a sensor on the air intake called the mass air flow sensor. This sensor calculates how much air to mix with the fuel. If you are using a cold air intake, the MAF sensor might not be calculating properly.

  • What happens if the mass airflow sensor is bad?

  • That is because if the sensor is bad or giving a wrong reading, then the cars guess might be closer to the actual amount of air that the engine is getting giving you a more accurate fuel mixture. Why disconnect the mass airflow sensor? So, why might you want to disconnect the mass airflow sensor and drive around like that?