P0304 Ford-p0316. How to fix?

Question

I threw a code of po304 and po316 on my 2003 ford tbird. What are my 1st steps to fix?

Answer 1

HI there,

The first code, P0304 indicates a misfire on cylinder #4. Most of the time this is the result of a bad ignition coil or spark plug. The second code means the computer is picking up the misfire within the first 1000 rpms during the engine running. If you replace the coil it should resolve both codes.

P0304 FORD - Cylinder 4 Misfire Detected

Read more: https://www.autocodes.com/p0304_ford.html