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 $350
- 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
P0100 Mass or Volume Air Flow Circuit Malfunction Medium
The P0100 code means the mass air flow sensor circuit is not working the way the computer expects. It is the general code for that family: its siblings P0101 through P0104 specify whether the problem is range, low signal, high signal or intermittent. A dirty sensor and intake air leaks explain most cases.