DTC P0307 is pending and can set the MIL if the misfire is detected during two subsequent engine starts.

It would be helpful to know the vehicle details such as MY, and the number of kilometres/miles showing on the instrument cluster.

If you detect the smell of raw fuel, most likely the injector for cylinder 7 is sticking. DO NOT continue to operate the engine if the MIL is flashing as catalyst damage is occurring.

 

Sorry this is a MY 12 XJL portfolio with 120k on the clock.

 

May well be a coil. Swap #7 with another & see if fault moves.

 

I will try that, is this something that I drive on temporarily or is this a get it to the shop ASAP type of thing?

 

If the condition causes the MIL to begin flashing, do not drive the vehicle.