Honda Ridgeline: P219A Meaning, Causes, & Diagnosis
P219A is a generic OBDII code. The code indicates that your Honda Ridgeline’s air/fuel ratio is out of balance (too rich or too lean). Your Ridgeline is equipped with oxygen sensors that measure the air-fuel ratio of your engine. It’s these sensors that are reporting the problem with the air-fuel ratio. With P219A are … Read more