[gqman13]

I have 2008 mustang GT. My check engine light keeps coming on. When i read the code it comes up as p0304. It says misfire on cylinder 4 detected. Their is no difrence in the way the car is runing either. If i clear the coed it has came back 3 times. Any Sugestions.

[mad4macs]

Being that it's an '08 (and likely under 60,000 miles), I'd suggest making it the dealerships problem and not yours.

Then again, if the problem really is with a "coed", they might not want to get involved.

[gqman13]

I thought about taking it to a dealer but i dont wanna have to remove my nitrous system, or any other aftermarket parts i installed.

[Shotgun]

That might be the problem, you're running nitrous. Could've burned something out.

[stlwagon]

Check the #4 coil. It might be failing. A good way to find out is to move that coil to another cylinder and see if the code follows it.

[gqman13]

Now this might be a dumb question but what cylinder is # 4.