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Home >> Infiniti >> 2004 >> I35 >> Repair and Diagnosis >> External Pages >> Different car >> Section 167 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0452: EVAP Control System Pressure Sensor Low Input >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2003 Infiniti I35. However, it is still accessible from the selected car via links, so may be relevant.

The EVAP Control System Pressure Sensor (EVAP-CSPS) detects pressure in the purge line. The sensor output voltage to ECM increases as pressure increases. The EVAP-CSPS is not used for engine control. It is only used for on-board diagnosis.

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