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Home >> Nissan-Datsun >> 2002 >> Altima SE, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0456: EVAP Control System >> Description
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DTC P0456: EVAP Control System: Description

This diagnosis detects very small leaks in the EVAP purge line between the fuel tank and EVAP Canister Purge Volume Control Solenoid Valve (EVAP-CPVCSV) using engine intake manifold vacuum. If ECM detects a very small leak, DTC P0456 will set. If ECM detects a small leak, DTC P0442 will set.

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