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
- $30 to $500
- 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
P0321 Ignition/Distributor Engine Speed Input Circuit Range/Performance Medium
The P0321 code means the engine speed signal from the distributor or reference sensor reaches the computer, but with values that do not make sense or with noise. It is a moderate severity code. You can drive with caution, but expect jerking and occasional cutouts.