2022–2024 Ford Maverick

2022-2024 Ford Maverick — Check Engine Light / OBD2 Diagnosis

By Ray Delgado ✓ Certified Mechanic · Published Sep 21, 2026 · Updated Oct 14, 2026

🔧 Easy 15-30 minutes $25 DIY

Save $95 by doing it yourself! Shop cost: $120

Quick answer: Check Engine Light / OBD2 Diagnosis on a 2022–2024 Ford Maverick is rated Easy and takes about 15-30 minutes. You'll need 2 tools for this job, and parts cost about $25. This guide walks you through the full job step by step, including the mistakes to avoid.

Quick Video Tutorial

Parts You Need

Total Cost

$25.00

Part Name	Part Number	Price	Buy
OBD2 scanner	—	$25.00	Amazon

About prices: shown prices are typical retail averages and change frequently; cheaper alternatives may be available. Confirm the current price before buying.

💡 Pro tip: Order all parts at once to save on shipping

Step-by-Step Instructions

Follow these steps carefully

Confirm warning severity

Check whether the light is steady or flashing. A flashing light means a severe misfire that can overheat and destroy the catalytic converter: ease off, pull over safely, and stop driving rather than continuing.

Connect the OBD-II scanner

Turn the ignition ON — or bring a hybrid model to READY — and connect. A reader with live data is ideal: EVAP purge/vent status, fuel-tank pressure, fuel trims, and misfire counters decode this truck's common faults.

Note whether the light appeared right after a fill-up

Ford has also documented a hybrid-model EVAP fault (SSM 53601, code P2450) that can be triggered by overfilling the fuel tank — so note whether the light appeared right after a fill-up, and stop fueling at the pump's first click.

🔧 Mechanic's note — Tom Becker

That 'stop at the first click' line saves more EVAP headaches than any tool I own — overfilling pushes liquid fuel into places only vapor should go. The pump clicks; you stop.

Check the likely cause

For EVAP codes that persist, trace the EVAP hoses for cracks or kinks and check the purge and vent solenoids; for lean codes, look for intake leaks and a dirty MAF sensor; for misfires, inspect the indicated cylinder's plug and coil.

Repair and verify

Rescan when done — a returning code means the root fault is still present. If the light first appeared after overfilling, the next few fill-ups without topping off are the real-world confirmation that the fix held.

All Done!

Test your repair before closing everything up. If something doesn't work right, double-check your steps.

⚠️ Common Mistakes to Avoid

• Replacing parts based on a code without checking wiring, connectors, or vacuum leaks
• Clearing codes before recording confirmed, pending, and permanent codes
• Using a scanner that cannot communicate with the vehicle protocol
• Treating a stored code as proof that the named sensor itself failed

Tools You'll Need

OBD-II scanner compatible with the vehicle Flashlight Notebook or phone for codes and freeze-frame data Safety glasses

Related Trouble Codes

P0300 Random/Multiple Cylinder Misfire Detected P0301 Cylinder 1 Misfire Detected P0171 System Too Lean (Bank 1) P0101 Mass Airflow Sensor Range/Performance P0174 System Too Lean (Bank 2) P0562 System Voltage Low P0302 Cylinder 2 Misfire Detected P0303 Cylinder 3 Misfire Detected

⚠️ Safety First!

• Informational DIY. EZ Car Fix is not a shop.
• A flashing check-engine light can indicate a damaging misfire; reduce load and seek professional service promptly.
• Never work under a vehicle supported only by a jack.
• Do not clear codes before recording them and the freeze-frame data.