Jump to content
SAU Community

Recommended Posts

Hey guys, I have just bought an R33 GTR, trying to diagnose some problems.

can anybody help me with a few Q's i have.

Q1. Engine is idling high at 1500rpm? I have read broken TPS causes this, how do i check to see if its broken and where is it located? under the plenum area?

Q2. Does the RB26DETT have AAC valve? and where is it located?

Q3. Atessa 4wd reservoir in the boot, how do you bleed this system so you can put in fresh oil? and what oil should you use in this system? (I Have been told TRANS MAX Z) auto tranny fluid.

Q4. What colour are standard GTR injectors? yellow?

Sorry for all the questions, but im racking my brains trying to find any info on these questions. and having only recently bought an Rb26dett, i am not totally familiar with these engines compared to the RB25det.

Thanx in advance

Darren

Hey guys, I have just bought an R33 GTR, trying to diagnose some problems.

can anybody help me with a few Q's i have.

Q1. Engine is idling high at 1500rpm? I have read broken TPS causes this, how do i check to see if its broken and where is it located? under the plenum area?

Q2. Does the RB26DETT have AAC valve? and where is it located?

Q3. Atessa 4wd reservoir in the boot, how do you bleed this system so you can put in fresh oil? and what oil should you use in this system? (I Have been told TRANS MAX Z) auto tranny fluid.

Q4. What colour are standard GTR injectors? yellow?

Sorry for all the questions, but im racking my brains trying to find any info on these questions. and having only recently bought an Rb26dett, i am not totally familiar with these engines compared to the RB25det.

Thanx in advance

Darren

TPS is located on the end of throttle linkage bar. Should be 0.4v at idle and 5V at full throttle...check with mulitmeter.

AAC valve is located under the plenum

Drain the fluid by removing the hydraulic line on the rear of the gearbox...replace the line...fill the reservoir back up...undo the white connector under the drivers kick panel...crack the bleed nipple on rear of box...turn ignition on...repeat. Yes transmax Z is what i use.

stockers are yellow

Edited by DiRTgarage
  • Like 1

ok guys, had the attessa system bled today, the little white connector seemed to be up under the dash more on my R33 gtr not in kick panel, maybe that was on r32 GTR. but we got it sorted in the end.

And the high idle problem seemed to be caused by the idle screw under the plenum was screwed up to 1500rpm for some reason. so we screwed it back to 1000rpm for idle , seems to work fine now. tps was working fine and so was the idle control valve.

Did it always idle high?

If it only just started happening out of the blue it could be your throttle body and intake gaskets have cracked, they are known to go brittle and leak air past them.

If you develop a miss fire off boost at say 1500rpm till boost, its a sure sign, my intake gasket had 3 places it was leaking from.

Also check hoses for cracks/leaks etc.

Hopefully it was just a little adjusting and not a leak somewhere....

Did it always idle high?

If it only just started happening out of the blue it could be your throttle body and intake gaskets have cracked, they are known to go brittle and leak air past them.

If you develop a miss fire off boost at say 1500rpm till boost, its a sure sign, my intake gasket had 3 places it was leaking from.

Also check hoses for cracks/leaks etc.

Hopefully it was just a little adjusting and not a leak somewhere....

No, when i picked the car up it was idleing at 1500rpm flat out, wouldnt go any lower, we adjusted it down and now it idles fine. i thought it was idle control valve or tps or something but it was just turned up.

  • 7 months later...
  • 1 month later...

well sorry i only just found this thread again. but my idle screw was wound out so the idel was higher, maybe done for some reason to mask another problem but im not sure. since winding it back in havent had any other problems with that area again. maybe check what everybody in this thread has said and just eliminate stuff as you go.

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

    • That is correct. I'm using a modified ABS ring and a ZF speed sensor on my rear diff for speed input. I'm running a Haltech ecu. 
    • Been busy with the newborn. We originally thought we were going to go for a third, but we're good with two lol. He's starting to actually sleep now so I've had some energy to work on the car. It's been parked away in the garage since late November due to winter.  I went ahead and redid all my head oil drains. I originally had my front and rear head drain going into the same pipe but have since split them up. I also added an Ethanol content sensor to get ready to run E85 this summer. Tossed it on my return line. Sensor sits nicely under my intake manifold.    I also have a lot of parts that came in for my rear end. I'll be swapping over to a 3.3 final drive and doing the GK teck anti squat mod. While the rear subframe is off, I'll also change every bushing. We're planning on buying another house soon with the condition that I get at a minimum a 2 door garage, so I'll wait to have more room for this. Now onto the strange things that recently happened... After changing the lower rad hose (It had been sitting in my cabinet for well over a year and was the last hose I had to replace), I let the car idle in the garage to bleed my coolant. After running for a few minutes, it started missing. Got much worst within a minute or two and then stalled and would not restart. My crank sensor decided to crap itself. No damage, no explanation, just died. I went ahead and replaced it with another ZF sensor but the heavier duty stainless model with a shield. Tossed that in and started right up. Has anyone else seen this? I hate when things fail without cause. Luckily this was a blessing in disguise... This lead me to recheck my timing. It seems I may have had a beer or two the last time I had set my TDC angle as I was off exactly 5 degrees... I miscounted a line haha. I was running 5 degrees less then commanded. It's a little embarrassing but helps explain why my dyno operator seemed to think I should be making more then 478rwkws.        
    • Sharing results from recent Liberty Walk R35 GTR, since they are still considered as somesort of a V36 Skyline. We do them turbos too. This are high flowed SS-1 models with ball bearing conversion done.  Car have managed to pull 485awkws @ 20Psi so far pushing limitations of factory built engine. The build list for R35 GTR enthusiasts as follow : HyperGear high flowed stock turbos in SS1 (G25-660 specs) Custom titanium intake pipes. Vspec performance titanium front pipes. Vspec performance 4" titanium exhaust. Upgrade fuel pumps. 1200cc injectors. Ignition coilpacks Hks intake plenum. Hks intercooler piping. Greddy intercooler. Greddy bovs. Top-secret coolant reservoir. Emtron ecu. Straight E85. Built gear box.  
    • Nah no bearings, just slip fit.  Would be a reasonably challenging but not impossible job to modify it to run bearings but I'm hoping that's not necessary as I may have well built one myself if I end up spending hours modifying it!
    • Brumbys with good shells are bloody expensive, I've looked at 2 "cheaper" cars, and walked away from both,  plus after some research spare parts are fairly sparce I'm starting to think that I missed the boat on finding a clean one that is straight (ish) and without alot rust I'm starting to think about a old Hilux as panels and other parts are much more available as they sold tens of thousands of them I use to be indecisive but now I'm not sure
×
×
  • Create New...