Hello Lee,
How did you get on with this one? The reason I ask is that I had one in last week, which was intermittently logging injector circuit faults & Map plausibility fault(even after the other garage had replaced the 2 indicated injectors). After quickly checking the timing belt, it was found to be loose & the fuel trims were high at idle (wandering around, sometimes going as low as 3%, but mostly +25%). At cruise & light throttle it was fine.It didn't look too far out on a running compression test, but I haven't had time to check the capture acurately yet. After readjusting the belt it was good at idle & the map reading was also good(as expected), but I didn't get time to test drive it to see if the misfiring reoccured as the cars sales picked it up, as they had their customer due to arrive to collect the car after a reasonably long train journey. I haven't heard anything yet so assume that has been ok so far. I didn't get any Eeprom fault though.
regards, Andrew