syncade

Hello all. I am looking for an R34 GT-T Air Conditioning line. The one that comes from the firewall to the top of the compressor. I would prefer an functioning line, but if you have one that has been burnt through, I may take that also. Please note, I will need this shipped to America, but i will obviously pay for everything. Thanks.

I hate to dig up an old thread, but can anyone help with this situation? I am running into the same problems.

I have an ECU from a Skyline R34 GTT / Stagea WGC34. Its from a 4-speed automatic. Will get the part number in a bit. Not sure if anyone needs this, but I have it sitting around. Turns out I needed a manual ecu. 200 USD shipped to you.

Well im still in the hunt. If someone could find me an R34 GTT Manual ECU, id really appreciate it! Ill give a finders fee!

Well i have continuity between the ecu and the coil on all 6 coilpacks, so I'm definitely thinking it is the ECU at this point correct? And BTW, it's cylinder 6 that wont fire, not cylinder one. I was backwards on my counting order.

I dont think it is the coils, as when I rotate them, the same cylinder wont fire. Im guessing at this point it must be wiring.

Any help?

Any other help gents? I sure could use it!

Please help someone!

Yes i have the pinouts, thanks though. Im very surprised nobody has ever had this problem before?

I know because ive disconnected the coils during idle and the motor doesnt change at all. I rotated the coils and plugs, so I know its either wiring or the ECU. How would I check the resistance on the wiring to coil one? Just complete the loop by running a wire directly from the coil to the pin on the ecu? Thanks for the help my friend, I do appreciate it.

Someone has to know.

I recently acquired a consult -> USB cable and discovered Code 21: Ignition Signal Circuit. Im from the USA and i put this rb25det neo into an s14. Im running the car on a Stagea R34 Automatic ECU. I did a search on the forum and did read some other threads with a similar problem, but none helped. The motor has been running for a few weeks, but I cant get cylinder 1 to fire. I rotated the coils and plugs around so thats not the problem. Power voltage to coil 1 is your normal 12-13.5V, but the trigger voltage was only .3V (all other coils were ~.8V). I know my problem is either in the ECU or Wiring Harness, but i also read a thread on here where someone had a bad ground? Should i test the continuity to coil 1? What do you guys suggest. Ive pretty much tried everything I can think of. I dont have access to try someone elses ECU or Wiring harness, as there are only a handful of these motors in my entire country. How often do these ECUs go out? I tried to test the voltage coming out of the Ignition Signals to each coil (directly on the ecu), but I couldnt get a reading for the life of me. Besides this one problem, the motor starts, idles, and drives as good as it gets (with 5 cylinders that is). Please help me out here gents!

Hey OP did you ever fix this problem? My motor is doing the exact same thing.

Hmmm. Theres definetly no way for me to borrow one, barely anyone in America runs RB25s let alone Neos. Ill have to check what my ECUs Part Number is and post it on here. What do you have your ignition timing set at? 15* or 20*?

Ive been searching for a bit and i cant find any solutions to my problem. I currently have a WC34 Stagea Automatic ECU running my manual R34 Skyline GTT drivetrain. This is all installed in a USDM S14, running fine and everything. I was wondering if the fuel and ignition maps are very different between manual and auto ECUs. I know most cars (such as z32) have completely different maps between transmission models, are RB cars the same? Am i losing a bunch of power and fuel economy? My 02 readings are right on, but the car runs through fuel like a diesel! I appreciate it the help gents.

Yeah my friend actually tried it with a Z32 300zx CAS (supposed to be the same as RB), but it did not work. Maybe he just gave up too fast?

Mods you can delete i figured it out.

If the light on my ECU doesnt turn on, does that mean the ecu is done? My car is a 95' 240sx with the r34 rb25det neo. Everything in the car works, i get spark and fuel, but the motor just turns over and wont fire. I know its either my ECU or my wiring harness ( paid a place to do the splicing). ALSO, my ECU is from the Stagea or whatever car it is that also came with the RB25det NEO, but the motor is from a skyline. I doubt that has any effect on why it wont start but I wanted to add that. Anyone have any input? I would really appreciate it!

You bought one for me?? PM me so we can start this transaction

CAS is a cam/crank angle sensor. Its on the front left of the motor if youre sitting in the drivers seat.

Still looking!

Still looking!

Surprised noone has ever tried this?

Does the hitachi have this pin also?