Agree with above. Hi there I did this the other way round CF3-CF2 all I can say at the mo is that most of the bits are the same sensors etc but not sure that the ecu is some of this is down to the emissions regs.
I would have thought that it would be very similar fuel wise if not a little better as you have got slightly less in the way of cats I think .
Will let you know how mine goes but no mot till next week so will have to wait till then.
How are you judging the fuel tank to distance traveled or by the gauge?
Did you change the cambelt or check the timing on the engine you put in?
If the manifold is leaking I think you should notice the noise bit like squeaky fa#t as appossed to the blow you get from an exhaust if you follow me .
Did you change or clean and check the injectors and of course the air pipes and maf?
Have a think and check through some of these see if you find anything. Don't trust the fuel gauge to much as they can be iffy especially if the tank is low on fuel.
Last edited by gibot123; 28-07-13 at 01:46.
Reason: Extra info