P Honda Random Cylinder Misfire Detected P Honda Description When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position sensor signal to vary, the Engine Control Module can determine that a misfire is occurring. P Honda Information for specific Honda models .Hello everyone. Last year, I did a video on the egr port cleaning of this car. This year it needed to get smog tested in California so we needed to get it back to non pollution status..Honda Ridgeline. , miles. Codes P, P, P, P, P, P, P and P. Basically a system too rich and random misfire and misfire on each individual cylinder correct?.Honda Ridgeline P Definition. P is a cylinder specific misfire code, which means that Cylinder is misfiring and causing the code. An important thing to understand when finding the location of cylinder is that it’s going to be the ‘rd cylinder in the firing order of the vehicle, and not the ‘rd cylinder that you might see when looking at the engine..