How do I fix a miss fire in cylinder 4 code ?

Hello, first - it's urgent to repair the concern, because with an engine misfire, you're often sending raw, unburned fuel through the exhaust system, which can quickly damage your catalytic converter. This would be very expensive to replace itself. Engine misfires, as noted by the flashing check engine light, are typically caused by spark plugs, coil, ignition wires or even a base engine concern. Hands on testing is needed to find out what is going on and where to focus the attention. If you've replaced the plugs and coils as you have described, the next step may be best to perform a base engine compression test and leak down test as needed. An internal engine concern can also cause this kind of misfire. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.