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Fault code - P0301

8K views 9 replies 4 participants last post by  john002 
#1 ·
Has anyone had experience with this fault code.

The car is idling rough (the rev counter is stable), pull off is rough and lack of power.

I have seen something about spark plugs and ignition coil - both are on order (due tomorrow).

Is there anything else that could be an issue?
 
#4 ·
P0301 is Engine Misfire Cylinder 1

It will be the spark plug probably corrosion

I had similar on mine with Cylinder 4 and when i took the spark plug out there was surface rust on it

As advised would put a new coil pack on as well

The issue is VX recommend changing spark plugs every 4 years which is too long in my book
 
#10 ·
CDAW said:
Based on the rust showing on the spark plug, someone suggested I get a compression test done of the cylinder as there may be water getting in.

Any thoughts?
If the car is pressured washed is there a chance water has overflowed from top of bonnet/windscreen onto coil pack, just a thought.
 
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