Jaguar Repair Problems? Ask a Jaguar Repairs Expert.
Hi Im David, thanks for visiting the site. the canister is on top side part of the fuel tank
hows it going?
ok, being the the vent solenoid is still failing, then the wiring to the vent control valve/solenolid needs to be checked. you need to make sure there is a good ground a power at the connector.
you should have 12vdc at the valve when commanded to open.
this is where it gets tricky because without a scan tool to command it to open theres really nothing you can do to control it. your best bet might be to have a smoke test done to make sure the evap system doesnt have a leak to the hoses for the vent valve
thats not a good ground
the ecm controls the valve based on pressure readings forn the fuel tank pressure sensor
P0447 - Evaporative Emission Control System Vent Control Circuit Open Possible causes Faulty canister vent control valve Purge Control Valve harness is open or shorted Purge Control Valve electrical circuit poor connection Before replacing any parts, check for damage EVAP canister and for loose hoses from the vent control valve to the canister. An improper voltage signal is sent to Engine Control Module (ECM) through Evaporative Emission System (EVAP) canister vent control valve. Possible symptoms Engine Light ON (or Service Engine Soon Warning Light) P0447 Description The Evaporative Emission System (EVAP) canister vent control valve is located on the EVAP canister and is used to seal the canister vent. This solenoid (the EVAP canister vent control valve) responds to signals from the Engine Control Module (ECM). When the ECM sends an ON signal, the coil in the solenoid valve is energized. A plunger will then move to seal the canister vent. The ability to seal the vent is necessary for the on board diagnosis of other evaporative emission control system components.This solenoid valve is used only for diagnosis, and usually remains opened. When the vent is closed, under normal purge conditions, the evaporative emission control system is depressurized and allows EVAP Control System (Small Leak) diagnosis.
yes. its an open circuit.
lets hope its not the ecm.
ok. that should get you pointed in the right direction then