Quick update for those like me that aren't electronic engineers.
So after i put the resistor in, i still had the mil light on and didnt have proper power back. I booked it into the dealer...and the day i dropped it off i took the resistors that i bought to show the electrical engineers at work. I had the wrong ones!
On the thread that i showed the girl at jaycar, it said to use a 4.7k resistor. She said that didnt actually exist and gave me 47k. The brains at work said, 'no, you need a 4k7'!...so back to jaycar, got a 4k7 1w, gave the dealer $130 for telling me theres nothing they can do (and there was some other code about cyl3 glo plug)...got home, new resistor in, and all good again! No more mil light straightaway...and all that power i remebered back!
Have ordered the plug from shibby as it mightnt be as temporary as a a resistor and leccy tape. Just need to order the new intake pipe now.