Jump to content
SAU Community

Recommended Posts

Hey guys i know this has been covered but i'm looking to take a different approach. I am doing a rb25 swap in my r32 and i am wanting to use my RB20 ecu. As far as wiring goes i know on the ecu the only pins i have to swap are 112 and 114. And yes i realize i'll loose my VCT i'll just get an MSD window switch problem solved.

Now my question is using the rb20 ecu and harness. What wiring needs to be done on the harness in both the series 1 and series 2 motors besides swapping the injector clips? I know the series 2 needs the ignition rewired due to no ignitor pack so if someone has some guide i can follow for either case that would be great. I am buying the motor soon and i'd like to know both ways to wire them so i'm not restricted in the motor i get. I'm Reading lots of different things but nothing exactly what i'm looking for.

If you guys can help me out that would be awesome

Thanks Brian

Link to comment
https://www.sau.com.au/forums/topic/272872-rb25-in-r32-ecu-wiring-help/
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • There's restrictor pills in the stock boost control hoses. That's how they set the amount that was bled off and hence the "high" boost setting. The usual mod in the day was to remove it and send the "high" boost setting up to about 14 psi.
    • Thanks Duncan, that's the best info I've read. Furthermore after learning about the PCM programming side controlling the factory boost solenoid, the purpose of the solenoid is to "bleed" boost when pin 25 is earthed, thus allowing spring pressure in the wastegate actuator to overcome diaphragm boost pressure, thus closing or reducing the position of the wastegate flap creating more boost as the turbo is able to spin faster. It's pretty cool to see a designated Pill to do exactly this, would have liked to have seen it with a tiny filter over the end for those moments in vacuum.  The constant bleed pill has now been removed completely from the system and solenoid boost control has been restored once again.   Case closed 😂
    • The wideband reading is meaningless if it's not running. Why are you using shitty old sidefeeds on any engine, let alone a Neo? What manifold and fuel rail are you using to achieve that? Beyond that, can't help you with AEM stuff as I've never been their ECU/CAS combo.
    • Manual boost controllers (where a little of the boost was bled off) were quite common back in the day, because they were cheap and easy. Generally they had a manual adjustment screw rather than being fixed like yours. Down side is they always bleed boost, not just when you want them to so an electronic boost controller that uses a solenoid will have less lag.
    • Hello , im new here and i have A31 home build  RB25det neo stock eng / turbo  aem ems 2 blue connector  aem 3.5 map aem cas disk aem wideband connected to ecu  355 lph pump 550 nismo yellow injectors side feed aftermarket regulator  and won’t start with base aem tuner basic tune eventually flipped cas 180 degree so it triggers on correct stroke not in exhaust cycle  Now it won’t start Wideband reads 10 and 11 at lowest fuel setting  and will share calibrations soon for aem tuner i think something is wrong in aem tuner    please if you have any information, am very grateful         
×
×
  • Create New...