P1443 - Evaporative Emission System Control Valve (Low/No Flow)

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P1443 - EVAPORATIVE EMISSION SYSTEM CONTROL VALVE (LOW/NO FLOW)

Description:	A fuel tank pressure change greater than minus (-) 7 inches of water in 30 seconds occurred with a purge, fuel vapor, flow at less than 0.02 lb/min (0.15 gm/s).
Possible Causes:	Blocked fuel vapor hose between the EVAP canister purge valve and the fuel tank pressure (FTP) sensor Blocked fuel vapor hose between the EVAP canister purge valve and the engine intake manifold Blocked vacuum hose between the EVAP canister purge valve solenoid and the engine intake manifold EVAP canister purge valve mechanically stuck closed
Diagnostic Aids:	Check for blockages between the fuel tank, the EVAP canister purge valve, and the engine intake manifold. Check for obstructions in the EVAP canister purge valve diaphragm and ports.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	-	-	refer to PINPOINT TEST HX .