Well I've been having issues with rough start ups when cold outside rpm's drop below 500 for a moment idles rough between 500-1000 rpm's it only actually died one time on start up that was last year it was like -10 degrees. Now yesterday it was a rough idle start dropping low rpm's and started my car after work and check engine light was on and I got misfire codes on there. I've been resting about possible vacuum leaks but I couldn't really find any. Someone with experienced this issue can shed some light on this that would helpful. I ordered bk44 to clean out the fuel system that's in process of getting here.

Add: code p1316
Thanks
James

 

P0300 is a random misfire, P0302 and P0306 are misfires on cylinders 2 and 6; P1316 is another general misfire code. Jaguar lists the potential causes as

Ignition coil failure Again cyls 2 and 6.

 

I found a leak on the Lower IMT intake looks like the o-ring is worn and it's sucking air in. Would this cause that issue?

 

Certainly could, probably would and definitely should be fixed anyway!!