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P0443 on Ford Maverick

EVAP System Purge Control Valve Circuit Malfunction

Factory diagnostic protocol and troubleshooting wire for fault code P0443 specifically for the Ford Maverick (2022–2026, 2.5L Hybrid FWD/AWD (191HP) / 2.0L EcoBoost Turbo AWD (250HP)).

Verified OEM Telemetry & Field Repair Tree
Ford Maverick2022–2026
Ford Maverick
Truck2.5L Hybrid FWD/AWD (191HP) / 2.0L EcoBoost Turbo AWD (250HP)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
Maverick SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Drivable (Short Trip)
Medium urgency level
Est. Repair Cost
$90 - $250 (DIY: $25 - $70)
Parts & Labor DIY
Check P0443 On Another Ford Model:
Diagnose P0443 on Specific Maverick Model Year:

1. Symptoms of P0443 on Ford Maverick

When the Engine Control Module (ECM/PCM) on your Ford Maverick (2.5L Hybrid FWD/AWD (191HP) / 2.0L EcoBoost Turbo AWD (250HP)) logs fault code P0443, drivers commonly observe:

Check Engine Light on on Ford Maverick (2.5L Hybrid FWD/AWD (191HP) / 2.0L EcoBoost Turbo AWD (250HP))
Engine hard to start immediately after pumping gas at the gas station on Ford Maverick (2.5L Hybrid FWD/AWD (191HP) / 2.0L EcoBoost Turbo AWD (250HP))
Rough or fluctuating engine idle on Ford Maverick (2.5L Hybrid FWD/AWD (191HP) / 2.0L EcoBoost Turbo AWD (250HP))
Slight fuel odor under hood on Ford Maverick (2.5L Hybrid FWD/AWD (191HP) / 2.0L EcoBoost Turbo AWD (250HP))
Ford Maverick OBD-II Port Location
The 16-pin diagnostic connector is located Under driver side steering column. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Ford Maverick

Historical warranty claims and technical repair bulletins for Ford Maverick point to the following failure distribution:

55%
Failed EVAP purge solenoid coil (open or shorted internally) (Ford OEM Part)
25%
Broken or frayed wiring harness to purge valve connector (Ford OEM Part)
12%
Blown EVAP fuse in fuse block (Ford OEM Part)
8%
Corroded pins inside electrical plug (Ford OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Ford Maverick.

3. Step-by-Step DIY Repair Guide for Ford Maverick

01
Locate EVAP Purge Solenoid Under Hood

Find the purge valve mounted on the intake manifold with one vacuum line leading to the intake and one to the charcoal canister. on the Ford Maverick equipped with 2.5L Hybrid FWD/AWD (191HP) / 2.0L EcoBoost Turbo AWD (250HP).

Required Tool: Flashlight
02
Test Purge Valve Solenoid Resistance

Unplug 2-pin connector and measure resistance across terminals with multimeter. Typical spec is 14–30 ohms. If open (OL) or shorted (0 ohms), solenoid is dead. on the Ford Maverick equipped with 2.5L Hybrid FWD/AWD (191HP) / 2.0L EcoBoost Turbo AWD (250HP).

Required Tool: Digital Multimeter
03
Test Vacuum Sealing

Remove purge valve and blow into it. A healthy de-energized purge valve should be 100% sealed. If air passes through, the internal seal is stuck open. on the Ford Maverick equipped with 2.5L Hybrid FWD/AWD (191HP) / 2.0L EcoBoost Turbo AWD (250HP).

Required Tool: Hand Vacuum Pump
04
Replace EVAP Purge Valve

Disconnect quick-release vapor lines, unbolt mounting bracket, snap new OEM purge valve into place, and reconnect electrical plug. on the Ford Maverick equipped with 2.5L Hybrid FWD/AWD (191HP) / 2.0L EcoBoost Turbo AWD (250HP).

Required Tool: 10mm Socket, Pliers
05
Clear Codes

Clear DTCs with scanner and verify EVAP monitor completes. on the Ford Maverick equipped with 2.5L Hybrid FWD/AWD (191HP) / 2.0L EcoBoost Turbo AWD (250HP).

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing Ford Maverick (P0443)

Prime Fast Delivery & Verified Fitment
EVAP Seal Replacement

OEM Tethered Fuel Gas Cap with O-Ring

4.7 / 5.0 (Direct Fit)

Tight-sealing factory fuel cap resolves common EVAP small/large leak codes without workshop visits.

$17 – $26 Prime
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Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

$29.99 Prime
View on Amazon
Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

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Other Common Fault Codes on Ford Maverick

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Ford Maverick:

4. Ford Maverick P0443 FAQs

What causes code P0443 to trigger on a Ford Maverick?

On the Ford Maverick (2.5L Hybrid FWD/AWD (191HP) / 2.0L EcoBoost Turbo AWD (250HP)), P0443 is most frequently caused by Failed EVAP purge solenoid coil (open or shorted internally) or Broken or frayed wiring harness to purge valve connector.

Where is the OBD-II port located on my Ford Maverick?

On the Ford Maverick, the 16-pin DLC diagnostic connector is located Under driver side steering column. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Ford Maverick with code P0443?

Yes. Safe to drive, but engine may experience hard starting after refueling at gas station. Given that P0443 carries a Medium severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.