mpi - spi

[iluminusbutterfly]

im converting my engine from single point fuel injection to multipoint soon,

i believe that i will need:
mpi head
mpi injectors
mpi intake manifold
mpi cdi
transponder ring and pick up
associated wiring

my question is, is the wiring for the fuel injection a sub wiring loom? as in can i just unplug a small part of the loom and change that for the mpi one or do i have to change all the engine loom wiring loom?

[ollsaxogti]

should just be able to swap the wiring harness for the fuel rail mate , but what about ecu problems ? ?

[iluminusbutterfly]

if i get the ecu for the mpi engine and change my transponder ring and pick-up i shouldn't have any ecu problems should i?

[ollsaxogti]

no mate that should do it if you change those then

[iluminusbutterfly]

if i can get the bits cheap enough it is worth doing isn't it? or will i just be wasting money?

[roberg919]

if its cheap enought do it but if you can sell your car and add the money to get a mpi engined saxo then its alot less hassle