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Discussion Starter · #1 ·
Soo...I got a misfire p304 code a few weeks ago and I could feel it the car struggle trying to accelerate at highway speeds. I replaced the ignition coil with one i had in my trunk from the junkyard and the car has been driving great since. I got 30.8 mpg on a 400 mile trip after i replaced the coil pack but the check engine light wont go off and still says p304. Is it possible for the car to be misfiring and not show any drivability issues and still get good gas mileage. It's been about 2 weeks and 600 miles since i felt the misfire while driving...any ideas are appereciated
 

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Did you clear the code afterward?
If not, it may take many ignition cycles, not just miles, for the computer to clear it and turn the check engine light off.
 

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Discussion Starter · #4 ·
cool, i thought it would reset and turn the cel off eventually on its own but it didn't after a few weeks.
Anyways i erased the code and it hasn't come back on since.... thanks again
 
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