Investigating the P0100 Code on Your 2022 Hyundai Kona
A P0100 code on your 2022 Hyundai Kona means the ECM has detected a malfunction in the Mass Air Flow (MAF) sensor circuit. Your 1st-generation Kona's 2.0L Nu engine relies on accurate airflow data for fuel efficiency in this compact crossover. With Hyundai's generous warranty likely still active, let's investigate your best path to resolution.
MAF Sensor on the 2022 Kona
The 2022 Kona's 2.0L Nu MPI engine (147 hp) uses a hot-wire MAF sensor to measure incoming air for fuel injection, ignition timing, and IVT (CVT) management. After three-plus years of service, oil vapor from the PCV system can contaminate the sensing element. The Kona's compact engine bay means components are tightly packaged, but the MAF sensor remains accessible for inspection.
Symptoms
- Check engine light on with P0100
- Hesitation during acceleration
- Rough or fluctuating idle
- Fuel economy below the expected 28-35 mpg range
- IVT may shift unpredictably
- Possible stalling
Ranked Causes
- Contaminated MAF sensor element (35-40%) — Oil vapor deposits after three-plus years.
- Air intake leak (20-25%) — Loose connection or cracked hose in the compact intake tract.
- MAF sensor failure (15-20%) — Internal electronics degradation.
- Wiring or connector issue (10-15%) — Corrosion or heat damage in the compact engine bay.
- Air filter condition (5-10%) — Neglected or improperly installed filter.
Diagnosis and Repair
- Check warranty — Your 2022 Kona is likely within Hyundai's 5-year/60,000-mile basic warranty (through ~2027). The emissions warranty (8yr/80k) covers through 2030.
- If under warranty — Visit dealer for no-cost repair.
- If out by mileage — Scan codes, inspect intake, clean MAF sensor ($10-15).
- Monitor data — Compare MAF readings against 2.0L Nu specifications.
Repair Costs
- Under warranty: $0 (likely covered)
- MAF sensor cleaning: $10-15 (DIY)
- MAF sensor replacement: $90-200 parts, $50-80 labor
- Intake hose: $25-70
- Wiring repair: $80-200