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Home >> Pontiac >> 2005 >> Grand Prix GXP >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Controls - 3.8L - DTC P1112 To DTC P2431) >> DTC P2431 (L26, NU3): Secondary Air Injection (AIR) System Pressure Sensor Performance >> Conditions for Setting the DTC

Conditions for Setting the DTC

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The PCM determines the difference between the AIR pressure sensor and the barometric pressure (BARO) sensor signals is greater than 10 kPa when the AIR pump is commanded OFF.

OR

The PCM determines the difference between the AIR pressure sensor and the BARO sensor signals is greater than 50 kPa when the AIR pump is commanded ON.

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