Rover 214si

[tenwierdufos]

if its lot happier then switch the manifold and down pipe for a Mpi one off the later wedge shape as that will help it more, also look at putting a more powerful fuel pump into it, Mpi one, as the bar is higher.
it could have been the stepper motor coming to think about it, on the throttle body, on your old unit. with you swopping that over for a new one, that might have sorted the problem.
Just a matter really of playing now, as you say. as not many places have the rover diagnostic port,  That's the little 3 pin plug.  I did have a spare alternator from my Egg beater that would have been plug in play for you! you could have had that for price of postage!
Rob one from a Metro

If the fuel pressure regulator in this car is set up for SPI at 1 bar, when you add the MPI pump at 3 bar surely all that will do is peg the pressure regulator open? Quite a large step up in pressure!

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Cheers on the alternator, never thought of asking haha, ended up buying one from the local motor factors which wasn't too dear, but it had the worlds loudest bearings in it, so they are getting another one in!