Swapping From Ems To Standard Computer

[Gtr200]

hey guys ive bought a nissan 200sx with an rb26dett in it the motor is pretty standard only mods are upgraded turbos from an r34 gtr, front mount and exhaust. it is currently running an ems 4424 or 4244 cant remember off hand, any way the car runs but the computer is designed for a four cylinder not a six and the injectors are grouped and coils also. at the moment it has a shit tune in it and fuel econamy is absolutly shit house im talking 250klm being sensable to a full tank.the computer is a map sensor type so i dont have afms and from what i can see they have used the standard r32 harness to the motor all they have done is chopped the blue plug of were the standard compter should go and wired the ems from there.

so i have ordered a standard computer full engine harness and some standard afms and i want to swap it all over

question one is will this work buy just unplugging one harness and plugging the other in and if not what else do i need to wire up???

will all my dash work still or will i need to rewire this also???

just asking as at the moment everything works fine bar my tacho because i have the six instead of the four in it.

any help would be great regards shaun

[JonnoHR31]

you'll need to rewire everything between the engine loom and the body loom, such as tacho, temp gauge etc

[Gtr200]

you'll need to rewire everything between the engine loom and the body loom, such as tacho, temp gauge etc

so all i need to worry about is water temp gauge as tacho dont work till i get a converter, and speedo and fuel gauge shouldnt be affected by the engine harness