P0100 on Your 2023 Ford Bronco
A P0100 code on your 2023 Ford Bronco indicates the PCM has detected a malfunction in the mass air flow (MAF) sensor circuit. Your Bronco uses the 2.3L EcoBoost or 2.7L EcoBoost V6, and this code is relatively uncommon on a newer vehicle—unless off-road contamination is involved.
Symptoms
- Check engine light on
- Rough or unstable idle
- Hesitation during acceleration
- Reduced power
- Poor fuel economy
- Possible stalling
Common Causes
- Contaminated MAF sensor (33%) — Dust and debris from trail use. Aftermarket intakes with oiled filters compound the risk.
- MAF connector issue (23%) — Vibration from off-road use can loosen connections.
- Faulty MAF sensor (18%) — Early sensor failure.
- Intake or turbo piping leak (14%) — Off-road impacts can loosen turbo piping connections.
- Air filter saturation (7%) — Wet or mud-contaminated filter from trail use.
- PCM software (5%) — Calibration update may be needed.
What to Do
- Check warranty — Ford's 3-year/36,000-mile warranty extends through 2026.
- MAF cleaning — If you've been off-road recently, clean the MAF first.
- Dealer visit — Warranty repair at no cost.
Repair Costs
- Under warranty: $0
- MAF cleaning: $10–$15 (DIY)
- MAF sensor: $140–$345
Warranty
Your 2023 Bronco is covered under Ford's 3-year/36,000-mile warranty through 2026 and the federal emissions warranty for 8 years/80,000 miles through 2031.