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, but with caution
Estimated cost
$50 to $600
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. P2195 O2 Sensor Signal Stuck Lean (Bank 1 Sensor 1) Medium

    The P2195 code means the oxygen sensor ahead of the catalytic converter reports a lean mixture all the time, without switching. Either the sensor is worn out and stuck, or the mixture really is lean and the sensor is reporting it correctly. The fuel trims tell you which of the two it is.

    Step-by-step diagnosis for P2195