AutoCodes – Ford – P0443 2002 Ford F150

P0443 2002 Ford F150 Code - EVAP Purge Control Circuit

Quick Answer

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. Common causes include 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. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: P0443 2002 Ford F150 indicates EVAP Purge Control Circuit .
Common causes: Common causes include 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.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 11,586

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0443 2002 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 2002 Ford F150 - EVAP Purge Control Circuit - AutoCodes.com — P0443 2002 Ford F150 Code - EVAP Purge Control Circuit

What does this mean?

What are the Possible Causes of the DTC P0443 2002 Ford F150?

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

How to Fix the DTC P0443 2002 Ford F150?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0443 2002 Ford F150 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0443 2002 Ford F150 Code

1. What are common symptoms of OBDII code P0443 in a 2002 Ford F150?

The common symptoms of P0443 in a 2002 Ford F150 include the check engine light illuminating, rough idling, poor fuel efficiency, and potential fuel odor.

2. What does the OBDII code P0443 in a 2002 Ford F150 indicate?

P0443 indicates a malfunction in the EVAP purge control circuit of the vehicle's emission control system.

3. What are the possible causes of OBDII code P0443 in a 2002 Ford F150?

Possible causes of P0443 include a faulty purge control solenoid, damaged wiring or connectors in the purge control circuit, or a malfunctioning PCM.

4. How can I diagnose the cause of OBDII code P0443 in my 2002 Ford F150?

Diagnosing P0443 may involve inspecting the purge control solenoid, checking the wiring for damage, testing the purge control circuit for continuity, and scanning the PCM for any related error codes.

5. Can driving with OBDII code P0443 in a 2002 Ford F150 cause further damage?

Continuing to drive with P0443 may lead to increased emissions, reduced fuel efficiency, and potential damage to other components of the emission control system.

6. How can I repair OBDII code P0443 in my 2002 Ford F150?

Repairing P0443 may involve replacing the purge control solenoid, repairing or replacing damaged wiring or connectors, or reprogramming the PCM if necessary.

7. Is it safe to continue driving my 2002 Ford F150 with the check engine light on due to code P0443?

While the vehicle may still be operable, it is recommended to address the issue promptly to prevent potential damage to the emission control system and ensure optimal performance.

8. Can a DIY enthusiast fix OBDII code P0443 in a 2002 Ford F150?

Depending on the skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair P0443 themselves, but professional assistance is often recommended for accurate diagnosis and proper repair.

9. How much does it cost to repair OBDII code P0443 in a 2002 Ford F150?

The cost of repairing P0443 can vary depending on the specific cause of the issue, the cost of parts, and labor rates. It is advisable to get a diagnosis from a trusted mechanic to determine the exact cost.

10. Will resetting the check engine light resolve OBDII code P0443 in my 2002 Ford F150?

Resetting the check engine light may temporarily turn it off, but it will not fix the underlying issue causing P0443. It is important to diagnose and address the root cause of the problem to prevent further issues.