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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 274 (Engine Controls - Self-Diagnostics - 2.2L) >> Diagnostic Tests >> DTC P1514: Throttle Body Performance >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The Engine Control Module (ECM) uses the TP sensor, BARO sensor, IAT sensor and the engine RPM information in order to calculate an expected air flow rate.

If ECM detects the air flow rate is greater than expected, DTC P1514 will set.

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