Jump to content
SAU Community

R34 Rb25det Conversion

Raki_King

By Raki_King,
in Engines & Forced Induction

 Share

Recommended Posts

Raki_King Contributor

Raki_King

Posted
Posted (edited)

Hey guys and girls

I have recently had an RB25DET Neo dropped into my R34 sedan...It was auto 2.0L neo and I have put the 25 in and converted it to manual, the loom has been completely rewired and has had the traction control removed. We started it up with no issues at all, took it for a drive and made a few adjustments to the cas and its running beautifully...It is awesome in first gear but the minute it hits 3500 - 4000rpm in second or any other gear it goes into fail-safe mode, turns to crap and gives the engine codes 44 and 46 which are tcs and tps. Apon doing some more research we noticed that we are missing unit called a "Throttle control unit" which appears to be in the 25det only from the r34 range...and being a 20de r34 it doesnt have this unit...We contacted nissan and their response was "Yes we have the unit available, $2000 please." WTF $2000????

My question is... Has anyone else come across this problem? Can something be done to the ecu to remove or bypass the need for this unit so I can get my car back on the road running as a 25det should? or does someone have one of these units that they would be willing to sell to me cheaper than I have been quoted?

Oh and I am running the standard 25det ecu

Any help would be greatly appreciated

Cheers,

Edited by Raki_King
Link to comment
https://www.sau.com.au/forums/topic/304405-r34-rb25det-conversion/
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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • nash47
      Cas issue

      By nash47 · Posted

      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         
    • nxh
      R34 4 door side skirt identification

      By nxh · Posted

      Legend. I ended up finding the facebook account of the owner of the first car i sent but sadly he deactivated the account. I think you’re right in saying it’s some sort of well done custom job. Really appreciate your help anyways.
    • GTSBoy
      boost source Size Garrett gt28 gen2

      By GTSBoy · Posted

      Totally equivalent. Stock often goes from the comp cover because that's where the actuator is also installed and the factory needs 2" of hose to make the connection - and it comes as a pre-assembled unit. They totally have a boost reference from somewhere between the turbo and the throttle(s). Oh, jeez. Just do it in M12 then. We don't actually care that much. I would expect any such AN converter fitting to rely on an o-ring or some other seal onto a flat surface under the flange of the hex**, because bolt threads are no intended to provide a pressure seal. unlike..... pipe threads. **which also requires a suitably flat and smooth surface on the turbo's boss to provide the seal.
    • timmy94
      boost source Size Garrett gt28 gen2

      By timmy94 · Posted

      I also used NP   That’s were it’s seems to be the best place to fit it? All schematic shows also that it’s should be referenced from the turbo housing. But idk, I do see high hp cars without any connection or anything to their turbos, so I really don’t know how they connect their things
    • timmy94
      boost source Size Garrett gt28 gen2

      By timmy94 · Posted

      I do have loctite 243 and 246 and a few more models. I could drill it now in place and make new threads for m12 and order an4 - m12 coupling and fit that to the turbo. Run a braided hose to the EBC which I could get a an4 to 1/8npt 
×
×
  • Create New...