I have a Dodge Ram 2009 1500 with a 4.7 It has a P0300 code.

Question

I have changed coils and plugs. I have checked fuel pressure. I have changed plug wires. What else should I check for still having P0300 code.

Answer 1

Hi there,

Here is a list of all possible causes for this code.

P0300 DODGE - Cylinder Misfire Fault Detected Random Cylinders

Read more: https://www.autocodes.com/p0300_dodge.html