[Melted1]

-40C driving at 120km
During acceleration pass this point Engine light was flashing on and off and I heard a clunk 3 times there is no problems with normal driving and acceleration at lower speed

This was every time I accelerated heavy past 120
Any ideas what this is

 

[Melted1]

Error code 304
Misfire
Might be water in gas
What do you think

 

[tinman]

Dunno what the code stands for.

 

[techtype]

Dunno what the code stands for.

Misfire on #4 cylinder, I believe.

 

[tinman]

Thanks, techtype.

Are we looking at a coilpack problem?

 

[HurstGN]

Could be a plug, depending upon mileage. Mine had some odd stuttering on the highway that was resolved with new plugs. Interestingly enough, mine never set a misfire code when it did it.

 

[kkuz]

To have the misfire code the misfire has to occur several times in some short period of time. One misfire some times may happens.

 

[HurstGN]

To have the misfire code the misfire has to occur several times in some short period of time. One misfire some times may happens.

Mine was doing it about 5 times in 2-3 seconds. I would have thought that would have tripped the CEL, but mine didn't. Odd.

 

[Melted1]

Now eng light is on all the time

 

[HurstGN]

See what cylinder the misfire is on. Maybe try plugs, they're rather cheap. If you suspect a coil, swap coils with another cylinder and see if the misfire follows the coil. If it does, it's the coil. If not, might be the plug. Consider valve coked up with oil sludge for the DI engine also.

 

[Melted1]

At dealership now only need a tune up thankfully that was all

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Thanks for the help everyone :0)