Help: Diagnostic Code P0304

[Stage2Roush2002]

Anyone know what this is? :shrug: And how to fix it?

It is on a 1999 Ford Lightning

Thanks ahead of time.

 

[RIDE THE]

P0304 = Cylinder #4 missfire detected.

#4 is the cylinder all the way in the back on the passengers side of the engine. Normally it's either a plug or a coil.

 

[Roush150]

check to make sure your injector is plugged in.

 

[SID297]

P0304 = Cylinder #4 missfire detected.

#4 is the cylinder all the way in the back on the passengers side of the engine. Normally it's either a plug or a coil.

My guess would be a bad coil, or connection. Interestingly enough, #4 is the most fun cylinder to work on.:bored:

 

[Snap on MOFO]

Anyone know what this is? :shrug: And how to fix it?

It is on a 1999 Ford Lightning

Thanks ahead of time.

Any p0300-0308 codes are misfire codes. On all domestics. GM, Ford, and gaysler
p=powertrain
c=chassis (abs, speeed sensors)
b=body (radio, guages)