All codes › P0102
P0102: Mass Air Flow Circuit Low Input
What it means
The MAF sensor signal voltage is too low, as if almost no air is flowing.
Severity: Medium Engine may stall after starting or run in limp mode.
Common causes
- Unplugged or corroded MAF connector
- Open signal wire
- Failed MAF sensor
- Heavily contaminated MAF element
Most common causes first. Exact causes vary by make, model and engine.
Can I fix it myself?
Often DIY. Inspect the MAF connector for corrosion before replacing the sensor.
Repair cost
SEEDED ESTIMATE Roughly $80–$310
Most likely repair: mass air flow sensor. Diagnosis fees, taxes and other causes are not included.
| Line | Low | High | Basis |
|---|---|---|---|
| Mass air flow sensor | $64 | $226 | Typical listed retail range, source (one $568 outlier excluded) |
| Labor 0.2–0.5 hr | $20 | $80 | $100–$160/hr, shop survey |
⚠️ This is an editorial placeholder range for this type of repair. It is not based on real invoices or licensed pricing data yet. Real ranges will appear here once enough reader invoices for P0102 are verified.
Verified reader invoices for P0102: 0. Share your repair bill to help build real costs.
Tools that can read P0102
- ScanFixAI: Pro $29.99/mo or $249.99/yr
- OBDAI: Annual PRO bundle $299
- BlueDriver Pro Next-Gen: $119.95 list ($99.95 sale seen)
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