All codes › P0132
P0132: O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)
What it means
Voltage from the upstream O2 sensor on bank 1 (before the catalytic converter), which the computer uses to adjust fuel mixture is stuck high, reading constantly rich.
Severity: Low–Medium Computer may lean out the mixture incorrectly.
Common causes
- Failed sensor
- Signal shorted to voltage
- Fuel contamination of sensor
- Actual rich condition
Most common causes first. Exact causes vary by make, model and engine.
Can I fix it myself?
Often DIY. Check for wiring shorted to voltage before buying a sensor.
Repair cost
SEEDED ESTIMATE Roughly $70–$330
Most likely repair: oxygen sensor. Diagnosis fees, taxes and other causes are not included.
| Line | Low | High | Basis |
|---|---|---|---|
| Oxygen sensor | $36 | $168 | Typical listed retail range, source |
| Labor 0.3–1 hr | $30 | $160 | $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 P0132 are verified.
Verified reader invoices for P0132: 0. Share your repair bill to help build real costs.
Tools that can read P0132
- 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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