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Engine and ECU swaps

42K views 17 replies 6 participants last post by  Denzil Cox 
Its a lot of work to do this. The list of parts is long. Just because the ECU looks the same means nothing. All nissan ECU look identical outside

engine
tranny
clutch
wiring harness
ecu
custom engine mounts, wiring job

at this point a 2.5 is a joke. Do an SR20DET. Much more reliable power
 
Nope. ECU is tuned for transmission(which is different) different model, everything matters. I work for nissan in a dealership parts department for 4.5 years now. I am not guessing at this

The pin controls in the harness all likely are assigned different jobs in the 2.5 harness vs the 1.8/2.0. Also its a different engine series qr vs mr. The engines arent even built by the same company.

and in the end, the 2.5 is not worth all that money. You could do an SR20 for less and have way more bragging rights and power potential in the car
 
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