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P0443 FORD

P0443 FORD - EVAP Purge Control Circuit

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Possible causes
- Faulty Evaporative Emission (EVAP) Purge Solenoid Control
- Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted
- Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection
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When is the code detected?
- An improper voltage signal is sent to ECM through the valve.
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0443 FORD Description
The Evaporative Emission System (EVAP) canister purge volume control solenoid valve uses a ON/OFF duty to control the flow rate of fuel vapor from the EVAP canister. The EVAP canister purge volume control solenoid valve is moved by ON/OFF pulses from the ECM. The longer the ON pulse, the greater the amount of fuel vapor that will flow through the valve.
FORD Technical Service Bulletins for P0443 code
2001 FORD RANGER ELECTRICAL SYSTEM:IGNITION:MODULE Details
1996 FORD ESCORT ENGINE AND ENGINE COOLING:EXHAUST SYSTEM Details
1997 FORD ESCORT ENGINE AND ENGINE COOLING:EXHAUST SYSTEM Details
1996 FORD ESCORT FUEL SYSTEM, GASOLINE:DELIVERY Details
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