Hi guys, the first part of this thread is just as the title says, my mechanic tells me that I am getting misfire codes for cylinders 2 and 4. I replaced the plugs at 75K miles and now I am at 88K so they should be good. I am therefor assuming the coil pack on the affected cylinders are to blame.

Can anyone tell me where to get a coil pack for the 2.7T motor? I am looking for a new direct replacement (I have had bad experiences with non brand parts in my car).

Also I am battling lean codes 1138 and 1136 can anyone tell me if these codes could be thrown by a misfire or if I have a secondary problem? or even of the misfire codes could be being caused by something other than the coil packs.