9-5 (9600) L4-2.3L Turbo (2.3 T) (2006)
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Diagnostics
Three different diagnostic trouble codes can be generated if the mass air flow sensor develops a fault:
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If the mass air flow sensor does not send a frequency at all to the control module, diagnostic trouble code P0100 will be generated. This can be
due to a break in one of the leads.
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If the frequency is too low, diagnostic trouble code P0102 will be generated. This can be due to a major leak between the mass air flow sensor and
the throttle body or and internal fault in the mass air flow sensor.
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If the frequency is too high, diagnostic trouble code P0103 will be generated. This can be due to and internal fault in the mass air flow sensor.
System reaction to a fault
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As soon as the control module detects a fault, the intake pressure and intake air temperature will be used as substitute values while the car is being
driven.
Fuel adaptation is zeroed.
