Engine Error
P0152
O2 Sensor Circuit High Voltage (Bank 2 Sensor 1)
Severity
Medium
Symptoms
Black smoke, rough idle, poor fuel economy
Common Causes
- Leaking fuel injector on Bank 2
- Defective upstream O2 sensor
- Short to voltage in O2 circuit
- Restricted air intake
How to Fix
- 1 Test and replace leaky injectors
- 2 Replace Bank 2 upstream O2 sensor
- 3 Repair wiring short
- 4 Check engine air filter
Estimated Repair Cost
USD
$50
–
$500
O2 sensor: $150 - $300; Injectors: $200 - $500