Jump to content
SAU Community

Recommended Posts

  • Replies 49
  • Created
  • Last Reply

Top Posters In This Topic

From my knowledge... Any ECU will work in an auto 33 Skyline... They just don't change gears properly... The shift from 1 to 2 is HARSH!! And it holds gears too long and it doesn't kick down...

This is definately the case with the Wolf Plugin and more than likely the case with the PowerFC...

I'm in the process of working out which signals need to be brought across to the auto ECU to "help" with this problem... It will never be perfect though, but some gains have been made...

hey im pretty much in the same situation

haave an auto r33

i was wondering with the haltech ecu i think its the e6X

if ya can put that into an auto, i'll find out more info but

yeah at the moment thats what im goin to do with replacin the stock ecu

just got the t04E hybrid turbo

be doin front mount soonish

and will have to find someone who can do a custom manifold for a good price .

From my knowledge...  Any ECU will work in an auto 33 Skyline...  They just don't change gears properly...  The shift from 1 to 2 is HARSH!!  And it holds gears too long and it doesn't kick down...

 

This is definately the case with the Wolf Plugin and more than likely the case with the PowerFC...

 

I'm in the process of working out which signals need to be brought across to the auto ECU to "help" with this problem...  It will never be perfect though, but some gains have been made...

Yeh ive done some research into this aswell and found that NO stand alone management works properly with the automatic gearbox. There is no gear logic code (thanks sk) :(

Been in autos with a wolf and powerfc now, wolf was better but still too much for me.

We know that the only way to have control over fuel and timing on the automatics without any change in the gear logic etc is to use piggybacks - most commonly SAFC2+SITC. Ive been told by a few people now that tuning the SITC does not affect the autobox at all, making it the only device i know of able to controll timing properly on an autobox without affecting it.

Obviously this limits tuning capacity and capability,

by only having about 260rwkw (highest ive found on standard ecu with piggybacks) of power available, only +- 50% fuel cotrol and timing control of 5 increments (800, 2400, 4000, 5600 & 7200rpm) with adjustment upto +- 15 degrees.

We know the SAFC2 can work with a Z32AFM in an automatic, well pretty certain anyway :)

And that larger injectors CAN be used by tuning the SAFC2 but its still uncertain how well they will work and what problems will occur when only being about to controll the air/fuel ratios to run the injectors.

Thats bout all i can think of :wassup:

in this thread

http://www.skylinesaustralia.com/forums/sh...t=automatic+ecu

sst in perth seem to claim that the wolf plug in will work perfectly with no splicing on a r33 auto . does anyone have concrete info contrary to this ?

my fav autronic tuner in perth claims he can get an autronic shifting perfectly also . he also is working on a remapable nissan ecu replacement , using a different ecu modified to work in the r33 . Im inclined to belevie him on the autronic as he knows his shit and had some very hardcore s13 autos running them

arkon i have wolf in my auto 33 and steve convienently doesnt say anything about any shifting problems with the auto.......... but my gears hold much longer then they should the kick down didnt work properly and 1-2 gearchange is harsh

i bought this unit under the pretense it did work perfectly with the auto as that what a workshop in perth told me..... hmmmm

Yes I have been going through this for a while I currently have a Wolf3D but I still haven't got it installed as yet just waiting for my intercooler to turn up.

I have tried the Power FC and it was harsh I have tried the wolf but just with steve-sst base map it was harsh but not as harsh as the power FC still needs some tuning.

Now people are saying that there wolf ecu are not working properly with there auto ecu and the gear changers are still harsh, I really didn't want to hear this.

Maybe Auto Skylines are supose to stay stock :( and just look good.......................

When the gearbox changes gears it tells the ecu to drop the timing and/or fuel momentarily so that the power is dropped and the gearbox doesn't suffer on the change.

ECU's like PFC and Wolf don't do this so you will probably eventually blow up your box.

I have a chipped ECU in my R34 tiptronic.

arkon i have wolf in my auto 33 and steve convienently doesnt say anything about any shifting problems with the auto.......... but my gears hold much longer then they should the kick down didnt work properly and 1-2 gearchange is harsh

i bought this unit under the pretense it did work perfectly with the auto as that what a workshop in perth told me..... hmmmm

how much of this could be controlled buy tuning the wolf , would some wolf installs be better than others ? or is it a matter of its just not possible because of hardware.

perhaps a manual conversion will come sooner rather than later

i am enjoying the lazyness of the auto though

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

    • Harness is for a s1 Rb25det, and it is engine and lower harness.  the old harness had broken off plugs and was in very rough condition/exposed wires and splices etc. it is not able to be put back on the car, I could visually inspect to see if they had rewired any pins on the ecu plug. The fuel pump definitly isn’t turning off it’s an external pump and very loud you can hear it. Will look at the other harness tonight, am also going to pull the fuel rail and watch the injectors spray, will update here with what I find. Pretty sure at this point it has to be something to do with injectors because car will fire up on starting fluid and cas is clicking the Injectors. Fuel pressure is steady 43psi 
    • Check the injectors flow evenly, and are actually flowing what you and the ECU think they should be flowing. If it's starting up on starter fluid, you have a fuel issue. Is it possible under cranking your fuel pump is turning off?   The harness you replaced, is that the whole engine harness? Do yourself a test, and drop the old harness on and plug it into the Z32 ECU. It's possible they've wired things different. From memory S1 to S2 is different in RB25 and you may have a wrong loom
    • I haven’t pulled the injectors to watch them spray yet but they are clicking from the cas and all of the spark plugs are wet with fuel. I’ve thought the cylinders were being flooded from the beginning and was hoping fuel pressure would fix it. Tonight I am going to pull the rail and watch the injectors spray. Don’t know how to test/diagnose if the plugs are firing in correct sequence but that should be a timing thing and as far as timing goes my car still has the half moon for the cas can only install it 1 way. And my mechanical timing is 100% correct I posted photos above. Confirmed with the balancer on and off. 
    • I checked spark on all cylinders and they all visually have spark with the plug pulled and grounded, but plug 1 is the only one that fouled. This was a running swap that blew up and was rebuilt by a machine shop, put a new wiring specialties harness and did all gaskets, studs, and bolts while it was out.  compression is 135-150 across all cylinders. Aside from that from my understanding with the z32 ecu and maf the car should start regardless. The wiring for TPS and the dual 02 sensor/ dual knock sensor stuff shouldn’t actually stop the car from starting or even running well, (just slightly rich)  they just give fault codes. Car supposedly is supposed to start as long as you have z32 afm and ecu with the nistune base map and that’s info coming from a well known and trusted tuner who does a lot with SR/RB (Rsenthalpy). After more trouble shooting today where I’m at right now is that the cas is sending signal to the injectors they click while spinning the rotor, Fuel pressure is now set at 43psi, all cylinders have good compression and all of the plugs looked great (just wet with fuel) except for cylinder 1 which was very black (cylinder 1 has 150psi compression). all of the coils generate spark if pulled out and grounded out on the head. On the fuel pump car just pops into the exhaust. On starting fluid car will fire off. Hard to tell if all cylinders are firing off but definitley a couple. sounds like all of them but it’s only for 3-5 seconds hard to tell. 
×
×
  • Create New...