I have a 1999 discoII with 140k miles, getting errors p0300 which states cylinder misfire, randon cylinders. p0340 camposition sensor(which I replaced this morning and p1300 ignition coil primary feedback circuit fault. I'm just wondering if anyone has seen this and can point me in exactly where to go, the rover is sluggish during idle and excelleration, drives ok when up to speed. what could this be? As I said I though it was just the cam position sensor and replaced that and it did little to nothing to help. thanks guys you always point me in the right direction

 

Have you tested for a signal from the new cam sensor? Look in the Rave CD for testing procedures.