Jump to content
SAU Community

Manual S1 Ecu Options

verm69

By verm69,
in Wagoneers

 Share

Recommended Posts

verm69 Explorer

verm69

Posted
Posted

Ok, so I've searched heaps and found heaps, but its all from 3-4 years ago and there are a lot of conflicting answers on this topic

I've read that a R34 GTT PowerFC will plug into SOME S1 Stagea looms and after the "Secret Squirrel pin51 mod" they run no problems, but there are issues with AC. Has anyone done this?

I've also read that the R34 stock ECU's will plug in, but there is't much info on this, and its confusing as hell. One post will say it can be done, and the next will say it can't.

There are a lot of conflicting answers about what us poor poor S1 Stagea owners can do ECU wise, so what has everyone done? Manual conversion or auto trans... can someone give me a definitive answer?

I'm asking because I have a S1 Manual Converted stagea and am having issues where under full gas it kind of splutters? Like the throttle closes by itself... its weird... I've done the coilpack tape trick, but this hasn't really helped, so i'm looking to fit a bigger fuel pump, then if that doens't fix it, i'll be upgrading the ECU, but there are heaps of conflicting opinions on what S1 owners can do. Alot of it seems to be for Auto S1's, but i mine's been converted to manual, so i'm not sure what to use! Any help will be great... but I just want a definitive answer!

Link to comment
Share on other sites
  • Replies 41
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

Ben C34
Ben C34

Its always a boost leak. Every time Unless it's something else.

verm69
verm69

Update! Made a pressure testing... device? Used a 3.5" pipe with thread and cap, a peice of step down pipe so it will fit almost anything (3.5", 3", 2.5" and 1.5") and a Tyre valve from supercheap...

verm69
verm69

That's one is pro! I don't have a welder so I can't make anything out of metal, and the wife has me on a budget... had to go the PVC pipe hahahaha! So put my ghetto compression tester on and found a

Posted Images

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

Manual S1 you can install pretty much any ecu you like. I only have personal experience with the Link but there are plenty of options. You are possibly suffering R&R if you have made some mods such as increasing boost.

Link to comment
Share on other sites
Trex Grand Master

Trex

Posted
Posted

you need to fix the issue first before creating more problems for yourself.

When did the spluttering start? have you checked the tps voltages? Afm? Checked the grounds and wiring attributed to the manual conversion? You didnt say anything about plugs?

You need to check what ecu you have first and find the pinouts, then cross reference to the 34 and s2 stagea as they have the same exu plug, for easy plug and play. otherwise you can use almost any aftermarket ecu as a wire in.

Link to comment
Share on other sites
verm69 Explorer

verm69

Posted
  • Author
Posted

Yeah, i've been trying to fix the issue with an ECU change as last option. I've cleaned the MAF, Put new plugs pages to .8 in, did the coil tape up as mentioned (the coils where def arking out, they had carbon marks and everything).

It all kind of started when i put the boost controler and put the boost up to 10psi, so I'm running 7psi right now and its not as bad (i'm guessing it was R&R), but its gutless and still kind of stalls out on full noise. It seems to be a pretty common problem where if I accelerate at half throttle the car pulls pretty well all through the revs, if I give it full power it is guttless and its like the trottle closes even though I'm stomping on it... I'll have my foot down and around the 4500rpm its like the throttle closes, gives the comprssor surge flutter and everything! frustrating as hell

I haven't checked the TPS or AFM yet, but they'll be on my list after the fuel pump... Its pretty frustrating! I'm finding the RB25 to be full of pitfalls compared the the SR20. I've read another post where a guy was having the exact same issue and it turned out to be his ECU and a boost/vacuume leak, so i'm guessing mine is the same... actually heres the video of the issue the guy posted

mine is very similar

Link to comment
Share on other sites
KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

I think the R34 GTST ecu may well work. I don't have the receipt anymore but I think my Link was a GTST plug in. The pinouts for the R34DET and the STagea S1 are virtually the same. I can send them or post them up if you need them.

And pressure test your system for leaks.

Link to comment
Share on other sites
verm69 Explorer

verm69

Posted
  • Author
Posted (edited)

Update! Made a pressure testing... device? Used a 3.5" pipe with thread and cap, a peice of step down pipe so it will fit almost anything (3.5", 3", 2.5" and 1.5") and a Tyre valve from supercheap... Glued the step down to the 3.5" pipe, and used thread tape for the cap. Drilled a hole just smaller than the thick part of the valve and sqeeeeezed it in. Will give the stag a pressure test either tonight or this sat

96WsCjw.jpg

Edited by verm69
  • Like 1
Link to comment
Share on other sites
datmoo Proficient

datmoo

Posted
Posted

Update! Made a pressure testing... device? Used a 3.5" pipe with thread and cap, a peice of step down pipe so it will fit almost anything (3.5", 3", 2.5" and 1.5") and a Tyre valve from supercheap... Glued the step down to the 3.5" pipe, and used thread tape for the cap. Drilled a hole just smaller than the thick part of the valve and sqeeeeezed it in. Will give the stag a pressure test either tonight or this sat

96WsCjw.jpgN

Love DIY, nice one! I like the stepping idea for different sized hose. Here's one I knocked up for my Datto (not pretty but does the job).

post-135423-0-62660800-1443083187_thumb.jpg

Link to comment
Share on other sites
verm69 Explorer

verm69

Posted
  • Author
Posted

That's one is pro! I don't have a welder so I can't make anything out of metal, and the wife has me on a budget... had to go the PVC pipe hahahaha!

So put my ghetto compression tester on and found a gaping hole in my intercooler piping where the bracket that mounts to the side of the engine is welded on! It was leaking so much I'm surprised it was making ANY boost! Its cracked the pipe on the bottom of the bracket, and has a small hole/crack on the top as well so shouldn't take too much to weld up... hopefully it'll only cost me like $10, then I'll give it another test!

  • Like 1
Link to comment
Share on other sites
verm69 Explorer

verm69

Posted
  • Author
Posted

Took my pipe to a welder who closed the hole for $10. Put it back on with some rubber washer things on the mounting bracket to stop it happening again and boost leak fixed! I'll be giving it a test again tomorrow to see if it has more, but i'm pretty confident that's my issue!

Link to comment
Share on other sites
verm69 Explorer

verm69

Posted
  • Author
Posted

Found a HUGE hole in my intercooler piping where it looked like it was cut with a grinder! But i got it and about 4 other spots that were thinning out welded up... Now it pulls like a champ! But i'm now having issues with overboost (running a turbosmart eBoost Street)!

Back to the whole ECU question, does anyone have the pinout of the S1 Stagea ECU? Or know how to identify what computer you have (i've read that there are about 3 the S1 stageas run)? Want to compare the pinout to a R33 GTST pinout. I'm very very keen to run a Nistune

Link to comment
Share on other sites
verm69 Explorer

verm69

Posted
  • Author
Posted (edited)

Pic of the hole for reference... I'll get a pic it welded up pipe at some stage

Still need to run another boost leak check just in case, but seems to be running much better

post-65806-0-58372100-1443585241_thumb.jpg

Edited by verm69
Link to comment
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

    • Chris_Guthrie
      Misfire/stalling issues

      By Chris_Guthrie · Posted

      Any recommendations on a decent replacement manifold that doesnt break the bank or require additional mods for the stock turbo setup? I figure if I'm going to pull the manifold off anyway to fix the studs might as well replace it. 
    • Chris_Guthrie
      Misfire/stalling issues

      By Chris_Guthrie · Posted

      So I checked the turbo out today. Very minimum play at all just enough for the oil to take up when it's running. I did find an exhaust leak at the manifold. 1 stud all the way in the front is missing and the one all the way in the back is broken off. Front has visible signs of an exhaust leak. I'll fix that soon but that's not my problem still.  I also found that the nipple coming off the turbo had the hose capped off and a hose ran from the j-pipe by the bov going to the wastegate. I removed that hose and capped that nipple and put the turbo nipple hose back on the wastegate.  There was a ton of oil residue all through the charge side of the intercooler piping going to the throttle bodg. I'm thinking that's from the pcv. Doesn't seem to be coming from the turbo that was all clean on the pipes side.  Haven't had a chance to check fuel pressure yet, haven't had time been having to pull a lot of doubles at work. I did pick up some carb cleaner to clean the iacv but wanted to make sure I had a fresh gasket in case the old one rips when I pull it off.  I'm waiting on a MAF that was supposed to be here today but delayed to Monday. Have a double Monday and Friday and work all of next weekend so going to try to find some time in the middle of the week to try that out. Did about a 10m trip around the block today and towards the end the issues were coming back. Fingers crossed on this MAF but if not just going to throw a fuel pressure gauge in and see where I'm at.  Did notice today that I can definitely hear the injectors pulsing. Very audible clicking coming from them. Assuming that's normal? Should also mean CAS is functioning somewhat properly. After it warmed up when I started it the intermittent misfires came in again. Did start doing that before it was fully warmed up. 
    • klutched
      GOT SUM's RB34

      By klutched · Posted

      This morning I carefully reinstalled the manifold and started looking at a couple of things I need to do.  Heat wrap arrived sometime today so I popped into the shed with the missus dishwashing gloves and started wrapping the first half of the dump and the screamer/plumb back.  Once I do the second half I'll be able to final fit the turbo and exhaust up.  Also pulled the harness out today and started terminating it at the ECU end. A connector is done, just need to run the remaining wires that arent in the harness - 12v, gnd and couple I/O
    • Dose Pipe Sutututu
      Rear suspension upgrades

      By Dose Pipe Sutututu · Posted

      A31 is pretty much the same thing without HiAIDS I mean CAS, no improvement lol. Not to late to send it.
    • carnoobb
      Newbies

      By carnoobb · Posted

      Thanks for all the replies! I also wanted to ask if wheels that were fitted on Ford Falcons would fit the 350GTs as well? In the area I'm at there aren't that many options for secondhand wheels and new ones here are way out of my budget. From what I've seen, most of the wheels that are available that were fitted on Ford Falcons have an offset of +33 to +36, with a centre bore of 70.5mm whereas the stock 350GT's ones are 66mm, can't seem to find any hubcentric rings that fit that difference though. 
×
×
  • Create New...