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 $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
P1101 Mass Air Flow Sensor Out of Self-Test Range (Manufacturer Code) Medium
The P1101 code means the airflow reported by the sensor does not match what the system expects from the other parameters. It is a plausibility code, not a circuit code: the sensor responds, but its value does not add up. Cleaning the sensor and finding intake leaks covers most cases.