P0303? Help

[MDP91]

Hello,

Basically I've had two fault codes come up today, one relates to my decat but the one that is causing me concern is the P0303, which I have read means cylinder 3 misfire. As far as I can tell the car runs fine, decent mpg but is a tad lumpy on idle at times? What is my best course of action? New coil pack and plugs?? I've never had an issue like this before so I'm a little lost

Regards,
Mark

 

[M26]

Spark Plugs, HT Leads then Coil Pack in that order.

9 times out of 10 that will cure your problem.

Remember to reset the light as the fault will still be in the system.

 

[MDP91]

Spark Plugs, HT Leads then Coil Pack in that order.

9 times out of 10 that will cure your problem.

Remember to reset the light as the fault will still be in the system.

Nice one, cheers mate. What spark plugs am I best of getting?