What does a p219a Bank 1 OBD code mean?
What does a p219a Bank 1 OBD code mean? Although generic, the exact repair steps may vary depending on year, make, model and powertrain. When a code P219A is stored, it means that the powertrain control module (PCM) has detected an air to fuel ratio imbalance for the bank of the engine which contains the number one cylinder. What does p219a mean on air fuel imbalance monitor? P219A Meaning The air fuel imbalance monitor is designed to detect differences in the air fuel ratio between cylinders per engine bank . The test fails if the air fuel ratio difference per...