P0102 Code - Mass or Volume Air Flow Circuit Low Input

What Does P0102 Mean?

P0102 is the general code for a problem with the Mass Airflow (MAF) Sensor having a low voltage output to the Engine Control Unit (ECU).

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What are the common causes of P0102?

• The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction.
• Fuel with a large percentage of sulfur will clog the DPF quickly
• A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.

How do you troubleshoot P0102?

Deactivation of cylinders is achieved by releasing a synchroniser pin that normally interlocks the cam follower and rocker arms. P0102 code resolves the synchroniser pin is released using hydraulic pressure which is controlled by a dedicated solenoid.



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