P0301 on FORD FOCUS — Cylinder 1 Misfire Detected

Q: "What does P0301 mean on a FORD FOCUS?"

"P0301 indicates: Cylinder 1 Misfire Detected. This is a ignition system code. 2 FORD FOCUS owners have reported this to NHTSA."

Q: "What are the most common causes of P0301 on FORD FOCUS?"

"Based on 2 NHTSA reports, the most commonly cited components are: Engine. These percentages are based on the component field in owner complaints."

Q: "Is P0301 serious on my FORD FOCUS?"

"Of 2 NHTSA reports for this code on FORD FOCUS, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic."

Q: "What should I do if my FORD FOCUS shows P0301?"

"1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare."

What P0301 Means on Your FORD FOCUS

P0301 is a diagnostic trouble code indicating: Cylinder 1 Misfire Detected. This code relates to the ignition system system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

2 FORD FOCUS owners have reported this issue to NHTSA across model years 2017-2018. Most reports come from the 2017, 2018 model years. The most commonly reported component is Engine (100.0% of reports).

Real FORD FOCUS Owner Reports

Source: NHTSA Complaints Database

"After recall Campaign 23S64 and the engine being replaced with G1FG-6006-DA and traceability Code [XXX] . Incident Description On Saturday [XXX], while driving on the freeway, my vehicle began sputtering and lost power. The RPMs increased but the speed did not."

— 2017 FORD FOCUS owner · ENGINE · Filed 11/22/2025

"At 80000miles I noticed misfires and replaced original spark plugs per spec At 107578, misfires occurred, when I pulled plugs pos 1 was completely worn out, as well as pos 4.Codes were seen P0304 and P0301. Car ran well after replacement."

— 2018 FORD FOCUS owner · ENGINE · Filed 02/02/2026

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

1

'17

1

'18

Common Causes on FORD FOCUS

Based on NHTSA complaint component analysis for this vehicle.

ENGINE 100%

What To Do Next

1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.

Frequently Asked Questions

What does P0301 mean on a FORD FOCUS? ▾

P0301 indicates: Cylinder 1 Misfire Detected. This is a ignition system code. 2 FORD FOCUS owners have reported this to NHTSA.

What are the most common causes of P0301 on FORD FOCUS? ▾

Based on 2 NHTSA reports, the most commonly cited components are: Engine. These percentages are based on the component field in owner complaints.

Is P0301 serious on my FORD FOCUS? ▾

Of 2 NHTSA reports for this code on FORD FOCUS, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.

What should I do if my FORD FOCUS shows P0301? ▾

1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare.