Investigating the P0100 Code on Your 2022 Kia Sorento
A P0100 code on your 2022 Kia Sorento means the ECM has detected a malfunction in the Mass Air Flow (MAF) sensor circuit. Your 4th-generation Sorento's 2.5L Smartstream or 2.5L turbo engine needs accurate airflow data for fuel delivery and transmission management. With Kia's generous warranty likely still active, your dealer should handle this.
MAF Sensor on the 2022 Sorento
The 2022 Sorento uses either the 2.5L Smartstream MPI (191 hp) or 2.5L Smartstream Turbo GDI (281 hp) with an 8-speed automatic or 8-speed DCT. Both use a hot-wire MAF sensor. After three-plus years, PCV oil vapor can contaminate the sensing element.
Symptoms
- Check engine light on with P0100
- Hesitation during acceleration
- Rough idle
- Fuel economy below expected range
- Transmission may shift erratically
- Reduced hauling capability
Ranked Causes
- Contaminated MAF sensor element (35-40%) — Oil vapor deposits after three-plus years.
- Air intake leak (20-25%) — Loose connection. Turbo: intercooler piping.
- MAF sensor failure (15-20%) — Internal electronics degradation.
- Wiring or connector issue (10-15%) — Corrosion or damage.
- Air filter condition (5-10%) — Neglected filter.
Diagnosis and Repair
- Check warranty — Your 2022 Sorento is likely within Kia's 5-year/60,000-mile basic warranty (through ~2027). 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.
Repair Costs
- Under warranty: $0 (likely covered)
- MAF sensor cleaning: $10-15 (DIY)
- MAF sensor replacement: $110-260 parts, $50-100 labor
- Intake hose: $30-100
- Wiring repair: $80-200