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
High
Can I keep driving?
Yes, but with caution
Estimated cost
$20 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. P0294 Cylinder 12 Injector Circuit Low High

    The P0294 code means the control circuit of the cylinder 12 injector has a lower voltage than the computer expects, usually from a short to ground or a missing supply. It is a high severity fault because an injector stuck open can flood the cylinder. You can drive with caution, but only for a short time.

    Step-by-step diagnosis for P0294