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P0443 2000 FORD F150

P0443 2000 FORD F150 - EVAP Purge Control Circuit

Repair Importance Level: 1/3
Repair Difficulty Level: 3/3   
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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
  • Damaged PCM

Tech notes

The PCM monitors the state of the EVAP canister purge valve circuit output driver. The test fails when the signal moves outside the minimum or maximum limit for the commanded state.

When is the code detected?

- An improper voltage signal is sent to ECM through the valve.

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0443 2000 Ford F150 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.
OBDII Code P0443 2000 Ford F150 - EVAP Purge Control Circuit  - AutoCodes.com

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