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. P0153 O2 Sensor Circuit Slow Response (Bank 2 Sensor 1) Medium

    The P0153 code means the bank 2 sensor 1 oxygen sensor is responding too slowly to changes in the air-fuel mixture. The usual cause is an aging or contaminated sensor, although exhaust leaks and mixture problems can do it too. 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 P0153