Jump to content
SAU Community

Recommended Posts

  • 2 weeks later...

Hi paul, sorry to bother you so many times with PM's and email. At the moment i'm kinda desperate for a solution and worried about the fact my car won't be fixed.

Prior to all these problem, i've placed my battery wrong way around and i suspected i've fried the powerfc. i took my power fc down to a place here who specialised in them. they looked over it and couldn't find anything that was wrong. thank god, s o the powerfc wasn't fried (i thought). i went and got my car retuned, however the car won't idle. report i got from the tuner was that the power fc idle solenoid driver needs repair. so i taken my power fc back and they looked over it again and said there's nothing to be found. plugged it back in and the car still not idling. now prior to all the mods, i know that my car was idling with the stock ECU. So that cancel out the possibility of anything on the car side (tps, idling). the mechanic said there's power going to the TPS, but there's no signal coming from the power fc. And this is wear i'm stuck and dumbfounded. the power fc has been fixed twice. i couldn't exactly go out and buy another power fc, as mine has been discontinued and i couldn't justify spending another 1k and being back to square one. a mate suggested that if i found a 2nd hand/ faulty power fc i could salvage the part (idling solenoid driver part) needed to fix my car. at the moment i can only find a 2nd R33 GTR power fc. Could i do this? and fix my power fc which is for a 94 s14?

any input and advice would greatly be apprieciated.

tn-

hi paul

1st of all would like to thank you for taking the time to help every one out with a top FAQ page for the power fc!!

i do have a question that has not yet been asked:

i have a air/fuel ratio gauge with wideband lambda (VEMS)

this replaces the stock narrow band lamnda but the gauge offers a narrow band output for the stock ecu.

it also offers wideband output for aftermarket ecu`s

1v wideband

2v wideband

3v wideband

my question is:

can i run the power fc on a wideband lambda on the 1v wideband output setting?

what would be the pro`s & con`s of this?

thank you

jake

ps: power fc model: ecr33 for the rb25det

hi paul

1st of all would like to thank you for taking the time to help every one out with a top FAQ page for the power fc!!

i do have a question that has not yet been asked:

i have a air/fuel ratio gauge with wideband lambda (VEMS)

this replaces the stock narrow band lamnda but the gauge offers a narrow band output for the stock ecu.

it also offers wideband output for aftermarket ecu`s

1v wideband

2v wideband

3v wideband

my question is:

can i run the power fc on a wideband lambda on the 1v wideband output setting?

what would be the pro`s & con`s of this?

thank you

jake

ps: power fc model: ecr33 for the rb25det

the PFC and std 02 sensor from memory is from 0.0v to 1.0v from a narrow band 02 sensor

so that being said, if your wideband sensor has an optional output for narrow band applications and its in the range of 0 to 1.0v then it should be fine

the PFC wont be any wiser, as long as the scale and logarthmic of the output is fairly normal it should be ok

well the pro is obvious, you can ditch the narrow band sensor and have 1 wide band sensor for both uses (wide guage and narrow ecu)

con im not sure there is any? as long as the output is normal and 0 to 1.0v it should be fine

the worst case would be the 1v output is useless and it will waste fuel on cruise

you can check the input signal on the PFC by viewing ETC, SENSOR SW CHECK

and checking out what 02-1 is at idle - it should be under 1 v

Hey 2 save me looking through all the pages i have a question with my pfc. my car has one of the apexi turbo timers that have the a/f ratio in it and when watching it while driving the ratio varies between 10.0 and 14.5 which im geting fixed up shortly but the thing that im confused about is when i lift off the throtle the air fuel ratio maxes out at 20.0 but it might even be more as thats wat the timer maxes at. and while i was on the way back home from superlap i was sittng at the lights at lithgow and had a look and at idle it was at 18.5 but as soon as i put a litle bit of throtle on it would drop down 2 14.5. is there sumthing wrong sumwhere that i should look at. i have datalogit and can try get a copy of them 2 pm sum1 if they want 2 look at them 2 help me as they r on my dads laptop. thanks in advance

hey guys ive just bought a power fc for my rb20 r32.

it came with no hand controller so i am trying to figure out which model it is as ive heard that i need a specific one.

i took the case off of the ecu and the nec chip in the middle for some reason has a white sticker saying r32 sr20det??

i msg'd back the bloke i bought it off and he said that he had just pulled it out of his mates rb20 ceffy. so i believe him.

so anyway. wondering if anyone can help me out

the numbers on the nec chip are as follows:

D78P334LQ(A)

0303RK007

inside there is another green chip approximately 8cms long that has the apex'i logo then CEX-9609-030-RB25

on the outer casing of the unit it has another sticker with PFC R32 A0236 and the AP. ENGINEERING under it

is this safe to assume this is a modified rb25 unit by ap engineering?

which hand controller do i need to get?

thanks heaps for any help people.

cheers ross

ps. will it be any concern that i am actually running a c33 laurel rb20??

pps. will my bee-r rev limiter still work??

Edited by jeffers1987

you can send a pm to "abu" he has an ap eng r32 PFC for sale with hand controller

the hand controller will have a sticker on the back with a version no, it should be FCC NT or FCC1

the model when purchased new is usually listed as N001

which is FCCNT or FCC1

the newer style hand controller is usually listed as X001

which is usually FCC3

FCC3 or X001 part # will NOT work - dont bother

check with abu but im certain it will be FCC1 or FCC NT- in the case find an FCC NT or FCC1 or N001 part # hand controller (nengun.com have it new)

Hey 2 save me looking through all the pages i have a question with my pfc. my car has one of the apexi turbo timers that have the a/f ratio in it and when watching it while driving the ratio varies between 10.0 and 14.5 which im geting fixed up shortly but the thing that im confused about is when i lift off the throtle the air fuel ratio maxes out at 20.0 but it might even be more as thats wat the timer maxes at. and while i was on the way back home from superlap i was sittng at the lights at lithgow and had a look and at idle it was at 18.5 but as soon as i put a litle bit of throtle on it would drop down 2 14.5. is there sumthing wrong sumwhere that i should look at. i have datalogit and can try get a copy of them 2 pm sum1 if they want 2 look at them 2 help me as they r on my dads laptop. thanks in advance

the 02 sensor value displayed on the Apexi turbo timer is pointless and a waste of space

it will provide you with nothing useful and will never show anything accurate, its a slow and narrow sensor.

simply ignore the readout and dont rely on it for anything

G'day,

Sorry if this thread is wrong for my question, I'll ask anyway.

I have '98 ECR33 with 34 CAS (one of these 40th anniversary editions), I'm interested in one that has been previously in Series 1 R33.

My question is, would the PFC from Series 1 work on Series 2 with 34 CAS?

I'd like to know this before I go buy it.

Thanks in advance.

Cheers

Grant

the 02 sensor value displayed on the Apexi turbo timer is pointless and a waste of space

it will provide you with nothing useful and will never show anything accurate, its a slow and narrow sensor.

simply ignore the readout and dont rely on it for anything

thanks thats wat i thought its going in 4 a tune shortly anyway and will have a wideband installed 2 it.

G'day,

Sorry if this thread is wrong for my question, I'll ask anyway.

I have '98 ECR33 with 34 CAS (one of these 40th anniversary editions), I'm interested in one that has been previously in Series 1 R33.

My question is, would the PFC from Series 1 work on Series 2 with 34 CAS?

I'd like to know this before I go buy it.

Thanks in advance.

Cheers

Grant

it will work fine, the CAS is visually different but works the same

you wont have any issues, i know of a 40th anniversary R33 1998 model with normal R33 PFC works fine

can an R34 GTR with a power FC retain its stock AFM instead of upgrading to the Z32s ?

Also what are the drawbacks of running with the stock AFM ? Cheers fellas.

yes the standard powerFC version uses standard AFMS

only the djetro version removes them and uses its own map sensors

there are no drawbacks of using the standard AFMS

using AFMS is better than using map sensors

the standard AFMS will max around 300rwkw ish

and youll need to upgrade them - the nismo AFMS

are z32 internal inside GTR shells so you can retain std pipework, ducting etc

Z32s are 80mm so if you goto z32s you have to change all the pipework etc

nismo AFMS are 65mm but with z32 sensors inside so same power level

just plug and play on the GTR with std airbox, pipe work etc

  • 2 weeks later...

hi Paul,

i plugged a PFC into my car last night and has some funny symptoms with my ATTESSA

CAR

R33 GTS4 RB25DET S1

PFC was from a S1 gtst my thoughts we it shouldnt matter that the car it came from doesnt have AWD as the main ECU doesnt handle that stuff but i had my AWD binding up on me on a few occasions

the only other thing that has been done different is i put my front shaft back in after it being out for about 6 months so could it be a coincident that the same night i put the shaft and pfc in i get weird binding

also i did drive it 45mins from my tuner to my house with no binding on standard ecu

hi Paul,

i plugged a PFC into my car last night and has some funny symptoms with my ATTESSA

CAR

R33 GTS4 RB25DET S1

PFC was from a S1 gtst my thoughts we it shouldnt matter that the car it came from doesnt have AWD as the main ECU doesnt handle that stuff but i had my AWD binding up on me on a few occasions

the only other thing that has been done different is i put my front shaft back in after it being out for about 6 months so could it be a coincident that the same night i put the shaft and pfc in i get weird binding

also i did drive it 45mins from my tuner to my house with no binding on standard ecu

hi

when you say issues - what issues? what errors / warning lights?

it doesnt matter what series the 33 PFC came from 1 or 2 its the same unit

i suspect the 4wd light is always on when you run with the PFC

if thats the case, find the TPS wire on your loom

i had this issue with my R33 GTST with active LSD

what happened was the stock ECU relays the TPS signal from the original source

onto another wire which runs to the active LSD computer in the boot

the GTR 4wd system is the same so stock ECU would relay the original TPS signal

onto another wire that runs to the boot, but the PFC doesnt do this

as apexi didnt cater for wierd spec R33s like yours and mine (that is GTS4 and GTST Active lSD versions)

both need the TPS signal relayed to the boot computer

so find the TPS signal on your loom and then check where it goes

it needs to run to your 4wD computer in the boot (there will be a TPS wire there)

oh it only happens at low speed seems to be when pulling out my driveway or into car parks

TPS = throttle position sensor?

might leave that one for my tuner

oh and when the issue happened today i looked @ my AWD light and it didnt come on but what it seems to do is put the attessa into 100% mode

oh and my AWD light isnt continuously on

  • 2 weeks later...
Hi just a bit confused here

the knock sensor reading on my pfc always reads , well its sort of a straight line like an 'l' any ideas ??

tried doing a search but an error came up

its a Bar graph style view

as you get more knocking the line will move like this

|-------------------|

to

|||||---------------|

and

||||||||||||||||----|

make sense?

if you press up in the thtat view you will get a digital readout of the same value

anything over 60 will make the engine check light flash

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

    • I do believe from context he is talking about a S0/S1 R33 RB25 with associated ECU and Wiring for that, and a manual gearbox into a R34 N/A Auto. I don't have the knowledge of all the pinouts and such but my gut feeling from doing my own conversion is to use as much of the R33 stuff that you can. The "car" wiring is quite seperate from the "Engine" wiring when all things are considered. The only things to truly consider 99% of the time is the cluster, reverse lights and potentially disabling the 'not in P/N' immobilizer circuit.
    • A realistic expectattion of how long it has to last also comes down to.... when do you think you will be banned from registering and driving old petrol powered shitters? It's 27 years since that thing was built. It probably rusted out 15 years ago. It was probably repaired and looked OK for another 10. If you do a similarish bodge job now, or perhaps slightly better with some actual rust conversion and glassing, then.... get another 10-15 years out of it, after which you'll only be permitted by the CCP to drive electric cars manufactured in their Shenzen zone anyway. 
    • Let me assume that the concern over a manual ECU is that the NeoDET that you have was an auto and has an auto ECU. That ECU will not be a problem, but you WILL have to Nistune it. And you would have to Nistune it even if you had a manual ECU, because the turbo ECUs will shit the bed if they do not have all the things that they were told they have to have, to be happy. The big one being the TCS CU, which you won't have in your car. Anyway, with an auto ECU (which I have running my originally auto NeoDET in an R32) Nistune allows you to put in a Stagea image which doesn't panic about the absent TCS, and allows you to override a whle bunch of other annoyances that would otherwise see the check engine light on 100% of the time. Also, you can't wind up the power very far on the stock NeoDET ECUs without Nistune, because the boost sensor gets in the way. Nistune allows you to push that problem much further up the dial. Do you even have the boost sensor with the engine? Without it, you are SOL and will need an aftermarket ECU (or to find a sensor somewhere, god knows where). I can't tell you what the wiring loom differences are in a 34. But what Duncan said above needs to be considered. When you say "loom", does that include the transmission loom? Because you will need to swap out the auto tranny loom for the equivalent manual loom, and get rid of the neutral/park start interlock (basically hot wire it).
    • I have had the r3c in for years now, maybe close to 7 years and it has never missed a beat, anyone can drive it. Super easy to drive around town, the hotter it gets does get a little hard but it holds the power easy as 
    • Shit thing to find eh? I guess the big issue is that whatever "fix" you do now, it might slow the rust down but won't fix it. I just wanted to add that in no way is fixing sheet metal in 3 dimensions the place to start with welding....that is a pro only job because its too hard to work out where things should be, let alone doing a clean enough job that it can look OK and still be strong too.  I needed to get a new rear quarter panel on the GTR and it took a pro weeks to get the old one off cleanly, new one on in the right place and looking somewhat like it should have with most of the previous connecting panels in place. Gluing a couple of bits of metal together with a welder in the garage is doable, but that is totally different to doing panel  replacement
×
×
  • Create New...