Multi-code OBD2 diagnosis

Enter all the codes your scanner showed, not just the first one. We give you the overall severity, whether you can keep driving, the order in which to check them and how they relate to each other.

Summary

Overall severity
Medium
Can I keep driving?
Yes, no immediate risk
Estimated cost
$50 to $400
Codes analyzed
1 of 1

The order below is the recommended one: first the codes that can cause the others. After each repair, clear the codes and check which ones come back.

Order of inspection

  1. P0152 O2 Sensor Circuit High Voltage (Bank 2 Sensor 1) Medium

    The P0152 code means the bank 2 sensor 1 oxygen sensor is reading high voltage all the time, which the computer reads as a rich mixture. It is usually caused by a contaminated sensor, a short in the wiring, or a mixture that really is rich. You can usually keep driving for now, but an upstream fault can raise fuel use and wear out the catalytic converter over time.

    Step-by-step diagnosis for P0152