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
Low
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. P0164 O2 Sensor Circuit High Voltage (Bank 2 Sensor 3) Low

    The P0164 code means the bank 2 sensor 3 oxygen sensor keeps reading a high voltage, which looks like a rich mixture. It is usually caused by a contaminated sensor, a short in the wiring or a mixture that really is rich.

    Step-by-step diagnosis for P0164