Diesel Data: Automotive Repair

General Information





Engine Control
P0444 Evap. Emission System - Purge Ctrl. Valve Circuit Open:_:General Information

Component Location







General Description

The evaporative emission control system prevents hydrocarbon (HC) vapors from the fuel tank from escaping into the atmosphere where they could form photochemical smog. Gasoline vapors are collected in the charcoal canister. The PCM controls the Purge Control Solenoid Valve (PCSV) to purge any collected vapors from the canister back to the engine for combustion. This valve is actuated by the purge control signal from the PCM and controls fuel vapor flow from the canister to the intake manifold.

DTC Detecting Condition





Specification





Schematic Diagram