Jump to content
SAU Community

Recommended Posts

Hey Paul,

I just read there is a VCT and non-VCT PFC models for the RB25DET. Is this true? If so, how can I tell which mine is (second hand, no box). I don't know the model code right now cos it's at home.

all rb25det models support VCT

Is there a specific Power FC for a R34 GT with an RB20DE normally aspirated engine?

No the ER34 PowerFC assumes you have Rb25DET Neo and associated Neo ancillaries

Will the Power FC for a R34 GT-T work?

No I wouldn't expect so as it will expect Neo 25t, with Neo injectors, coils etc

You would need to look at either using an RB20 Ap Engineeering PowerFC or do an engine swap

Using an Rb20 AP eng is probably just as hard as the rb20de you have probably still has the R34 traction control etc fitted

so its not just a normal rb20de but a half cast between the RB20 and Neo engine setups

hey Paul..just got a question for ya...my car doesn't idle well...it just keeps hunting even when i have selected the R33 AFM and did the learn idle for 30 mins i've actually done this twice....so yeah i donno where my problem is would you be able to shed some light?

Cheers

Chi

bought a PFC for a R33 GTR and plugged it into my R32GTR and it wont start just sits at the apexi logo screen. Now i know this is supposed to happen with incompatible hand controllers but this came from a working skyline? any ideas? need help urgently as the car is sitting at the tuners waiting! THanks heaps

is the PFC combo new or 2nd hand?

if its freezing on the apexi logo the hand controller is the wrong version or its damaged etc

the car probably isnt starting as it needs to be DATA INIT'd and reset to factory defaults like it might have diff injectrs / afms etc

from what i understand the R33/R32 gtr pfc is the same?

but from nenguns compatibility table there is an older version hand controller 415-N001 which on works with R33 GTR? The newer model 415-X001 works with both R33GTR and R32GTR, could this be the issue? i thought since the number is FCC3 it was a version 3 hand controller meaning it would be a newer model?

yeah so you have the older style GTR PFC and the newer style hand controller which is why its freezing at the apexi logo

you need FCC NT hand controller or N001 from nengun's site

32 / 33 GTR PFC is the same, but you need a matching hand controller

if you have PFC RB26 then you need FCC NT or N001

If you have PFC GTR33L then you need FCC 3

so this would have worked in a 33GTR but obviously not in my R32GTR? thanks for the help buddy! ie. could this combination every worked together or was i sold a bullshit combination that never worked?

Edited by c0ris

Hi Paul

Just a quick question, if i want to swap a RB26 engine (either a 32 or 33GTR) to my current R34 GTT which already has a PFC. Do i need another PFC based on the GTR model or can i still use the GTT? Would my a/c or other electrical works with a GTR PFC?

Driftmeister, I have a 98 GTT with a PFC for the original engine (RB26DETT(Neo). I did a swap with a BCNR33 RB26DETT but I kept my same PFC and the original wiring harness for the GTT. My GTT runs ok but with many symptoms here and there. My power steering doesn't work (nothing to do with PFC), no a/c (also nothing to do with PFC). Those two things are just compatibility issues. I just need to buy a new pwr steering pulley and an OEM compressed a/c line for a R33 chassis.

Electrical Problems...

My check engine light stays on but there's no problem...

No TCS..

Oil Temp Guage doesn't work.. compatibility issue... aftermarket sensor will fix that.

Theres a compatibility issue with the injectors. The PFC for a GTT runs on a high impedance system, the RB26 motor for a BCNR33 uses a low impedance system. I lucked out, I ordered some Bosch 444cc Green Top High Impedance injectors from the US (cheap but they sell in set of 8.. I just sold the other 2 to my shop), my tuner has a friend who's a Robotics Professor and he built a converter sensor to change the RB26 system to high impedance.

There were trial and error things that I went thru with my air sensor since I only have that one from the RB25 motor. My tuner had to modify the pfc to read the different air flows. We were trying to go D-Jetro but we still need to work things out to see whats best.

I suggest buying the correct harness and cpu for the RB26 motor if you have the loot to do so... you'll eliminate many headaches.

I'm about to get my Tomei 276 l/hr high flow fuel pump installed this weekend. Were expecting ~400whp, 62whp gain from what it is now. All I have is

Apexi Filters (both are for the GTT haha saving money again)

full custom exhaust

FMIC

SARD Fuel Regulator

Exedy Hyper Multi Plate Twin Clutch

Blitz SBC-iD III

HKS Turbo actuators

and the Tomei fuel pump.

Hope my mistakes shed some light for you!

Driftmeister, I have a 98 GTT with a PFC for the original engine (RB26DETT(Neo). I did a swap with a BCNR33 RB26DETT but I kept my same PFC and the original wiring harness for the GTT. My GTT runs ok but with many symptoms here and there. My power steering doesn't work (nothing to do with PFC), no a/c (also nothing to do with PFC). Those two things are just compatibility issues. I just need to buy a new pwr steering pulley and an OEM compressed a/c line for a R33 chassis.

Electrical Problems...

My check engine light stays on but there's no problem...

No TCS..

Oil Temp Guage doesn't work.. compatibility issue... aftermarket sensor will fix that.

Theres a compatibility issue with the injectors. The PFC for a GTT runs on a high impedance system, the RB26 motor for a BCNR33 uses a low impedance system. I lucked out, I ordered some Bosch 444cc Green Top High Impedance injectors from the US (cheap but they sell in set of 8.. I just sold the other 2 to my shop), my tuner has a friend who's a Robotics Professor and he built a converter sensor to change the RB26 system to high impedance.

There were trial and error things that I went thru with my air sensor since I only have that one from the RB25 motor. My tuner had to modify the pfc to read the different air flows. We were trying to go D-Jetro but we still need to work things out to see whats best.

I suggest buying the correct harness and cpu for the RB26 motor if you have the loot to do so... you'll eliminate many headaches.

I'm about to get my Tomei 276 l/hr high flow fuel pump installed this weekend. Were expecting ~400whp, 62whp gain from what it is now. All I have is

Apexi Filters (both are for the GTT haha saving money again)

full custom exhaust

FMIC

SARD Fuel Regulator

Exedy Hyper Multi Plate Twin Clutch

Blitz SBC-iD III

HKS Turbo actuators

and the Tomei fuel pump.

Hope my mistakes shed some light for you!

Thanks for your prompt feedback bro..appreciate it. I didn't expect to have quite a number of compatibility issue. I thought if i were to go RB26, the best would be to use the complete harness from the 33GTR and get a PFC for the it. I would presume the TCS & A/c wouldn't be working and a/c require a separate switch for it.

Anyway, now i think it's better to just mod the GTT 25 engine which is less headache. Cheers!

  • 3 weeks later...

my r33's exhaust light is on all the time, i couldnt find an answer in ur power fc guide, if its a sensor problem, what should i do if it is? and my check engine light is on a fair bit too, but my knock is under 20. My warning functions r all on too.

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

    • 100% accurate!  We are a pack of know it alls....  But, I bet people go to you when they have a problem! I've been on a bit of a clean up rampage too over the past month!  I've thrown more shit in the bin over the past 2 weeks than I have in the past 3 years combined! Anyway, it's all good fun being different! My wife sometimes does not agree!  
    • ADHD in all form isn't about "can focus, or can't focus" or is hyper active or isn't etc.   It's all a dysregulation. Either time feels to be stationary, or time just vanishes in a split second. We are either under focussed on the task at hand (as we're over focussed on our surroundings) or we have no idea an atomic bomb went off beside us as we're so hyper focussed and locked in on things.   Not to mention the rapid fire thought process. What it takes a "normal" process to think up a solution to a problem, ADHD will be able to give you 5 different ways to solve the problem, and the pros and cons of each. While we can be highly impulsive and lack the ability to "control ourselves" we can also become paralysed with the inability to make a decision for ourselves. While most of us have an OCD like requirement for perfection, we lack the ability often to remain focussed to get things to a perfect state. Those with undiagnosed ADHD as adults, can often find the last part actually stops them ever attempting to do things that they have the ability to do, as the reasoning is often "if I can't do it perfectly, it's not worth doing"   As for projects... Ha ha ha, I still need to take the other half of my wall trim down in the Fiance's office so I can paint it. Need to finish digging and running the back yard drains, my R33, getting the Ninja bike registered (now being sold), the moped project, fixing either of the lawn mowers so they're reliable, along with a myriad of other things.   It's why I've been going through lately and just being brutal and clearing projects off that I won't actually ever complete. IE, moped will go to the tip, or be given away, bike is being sold, Subaru project being sold, some parts for other projects given away. Or I've been making myself focus on one thing at a time, by ticking off the smallest quickest ones first.   There's also a reason by our mid twenties we seem to be "know it alls", as we've all been down some of the weirdest and oddest rabbit holes when you follow the dopamine trail. It's often also why we're more a jack of all trades, but not a master of one.   However, pretty much all of my hobby projects, in one way or another, all come back around to automotive. That's my zen area.
    • Remember reading about this not too long ago. been for sale for a long time  this is like when the wife says you need to sell the car so you put it up for a ridiculous price no one will pay
    • You are perhaps suggesting that it is not a super car? Well....it's not an AU.
    • Dropped the MX5 of this morning to get the hardtop colour matched and some PDR done, they are also going to give it a buff to remove some "stubborn" swirl marks and light scratches in the clear coat Over the last few months the poor little thing has copped some shopping centre car park abuse, I try to not park in them, but hitting Westfield's a few times over the last few months has taken its toll, nothing really bad, but enough of a trigger for a "while we're in there" thingie  Once it's back and all the one colour, with a few dents and mark's removed I'll give some of these products a go and see what they're like  
×
×
  • Create New...