Is This Workshop Screwing Me?

[Kinkstaah]

Hi guys.

I'll try to keep this as concise as possible, but it is a long story.

I buy a car from workshop A, after State Roads give the all OK.

A 2000 R34 GTT Auto 4DR (hey, I like convienience)

Turns out Workshop A are a bunch of bastards, and as I learn more I realise this isn't what I was sold. Made a thread awhile back. Anyway, found out that NA+T is nice and legal, and even more responsive, so I move on to Workshop B to get it checked out, and legal. Was running bad. Had FMIC and POD (eww, EPA!), wanted to get it checked out.

Workshop B Is possibly the highest regarded workshop I've seen referred to on these forums.

Workshop B look at car.

Workshop B scratch their head, wonder WTF is going on here.

They find out car is a NA+T, running a NA ECU. (No Piggyback)

They advise to get it going legally, need Turbo ECU, and some modifications to Loom, so nonexistant things the Turbo ECU is looking for (boost sensor, Traction Control, ATESSA?) so make the ECU stop giving error messages. I do believe DAN666 mentioned this is somewhat simple to do. Would also need an Airbox, and GTT Injectors ETC. Fair enough.

I get the ECU (from here, woo!), and call Workshop B. The answer I get from workshop B is that they weren't willing to actually do the work. (?) Bit bummed as I already bought the ECU. They do however, refer me to Workshop C. (another, very well recommended place)

I go to Workshop C and advise the above.

The car has since been there 9 weeks.

The most of this time I was advised was trying to source a GTT loom, but having problems finding only a loom, as opposed to engine swap. I suppose this is normal. I don't know. He says that it isnt possible to modify the loom in the above fashion. He also said it would need a Turbo Plenum, Throttle Body, etc. As the car had been there 6 weeks looking for the loom (is this even needed?), I cave and go for an e-manage ultimate, making the car non legal. I figure if I get pinned in the future, I'll either just NA the car, and do an engine swap.

I've also been lead to believe on the R34 Auto's, the shifting is independent of engine ECU, which means could drop a RB26 in there with a GTR ECU. I'd love that to be the solution to my issue.

But it seems, for now, I've been quoted $1800 for the ECU, fit, tune, etc. Is this really required, when apparently modifying the GT loom isn't so bad to fool the turbo ECU to stop giving errors? That was the original plan.. and then get the thing tuned by Trent @ Status tuning.

Did I take the car to the wrong place? Is doing this so rare that its understandable a workshop may not know the info provided by the great people here at SAU? Are the SAU posters incorrect? Should I have just taken the car with the turbo ECU to an auto electrician instead of a workshop?

I've only "had" the car a few months, really got thrown into the deep end here I think.

Recommendations, or places that will tackle this very welcome.

[R31Nismoid]

Why don't you just buy a new loom from Nissan and be done with it? First thing i would have done.

Loom would be less than $800 trade price, i might even be able to organise it cheaper again if you get me a part number (i cbf'd finding it out, that's your job).

Cheap and easy solution.

Sure beats paying $400 for a 2nd hand 10yr old loom.

I don't see that fixing the issues though, you still need the entire NEO DET intake to match the ECU i would have thought.

I'm not 100% on the NEO top end/sensors. You will need to sort that all out to actually be EPA legal.

You can't just slap a turbo on and it is legal. It needs ALL the emission related controls of the Turbo Motor to match the ECU/Loom.

Soon as the EPA spot the dual intake of the N/A manifold and then the turbo, you'll be failed IMO.

[Kinkstaah]

Actually I've tried.. I made a post in the "Find out part numbers HERE" thread to try and find it (as I dont have the car, I cant check where to find it, and obviously I dont have a GTT loom to check the part number on for the turbo loom. Cause if I did, I'd have a loom. Don't know anyone with a R34 GTT either. )

Infact, the e-manage was a case of me wanting to be able to drive something in the meantime, while trying to find the loom and not having to rely on public transport to get to and from work.

If easily modified still means it'd fail EPA unless the intake/throttle body/loom matched correctly, then that would be the exact reason I got the "You'll need a loom" in response to wanting it all to be nice and legal. Which sets my mind at ease a lot, actually.

Mainly wanted to understand the reasoning behind it, which I now do. In which case the "you may actually be better off doing an engine swap" also gains a lot of validity, for those reasons.

[_Ryan_]

Cause if I did, I'd have a loom. Don't know anyone with a R34 GTT either. )

Grab a random GTT's rego, run it thru vicroads online(free) and get the VIN, run it through FAST, get part numbers.

[Kinkstaah]

Grab a random GTT's rego, run it thru vicroads online(free) and get the VIN, run it through FAST, get part numbers.

EDIT:

From here (http://www.skylinesaustralia.com/forums/VI...html&hl=VIN)

6U9000ER34009512

Is apparently the VIN number of a R34GTT

.. still don't have FAST though. Anyone got a torrent?

[Ruffels]

these are loom part numbers... but are for a Manual R34 GTT

Main loom 24011-AA000-

coilpack loom 24089-5L300-

injector loom 24079-AA000-

Fuse box loom 24012-AA000-

[Basti]

thread

post in there, and someone will do it for you

[WYTSKY]

Check your Pm's Re: workshop stuff

[adznight]

What a head f**k. I didn't read too much of the old thread but my question is why do you still have the car, I would have done everything possible to return it to the dealer. Yuk.

[Kinkstaah]

these are loom part numbers... but are for a Manual R34 GTT

Main loom 24011-AA000-

coilpack loom 24089-5L300-

injector loom 24079-AA000-

Fuse box loom 24012-AA000-

Awesome.. but does anyone know whether this is different for auto/manual? Or whether they are interchangable? Or whether I actually need all 3?\

Spose I'll ask Workshop C

thread

post in there, and someone will do it for you

I actually did post in there about 5 months ago I also posted awhile back in the "Find Part Number" thread.. infact last I checked the most recent reply in that thread was actually me, looking for the part numbers of the loom

Check your Pm's Re: workshop stuff

I got a LOT of PM's in regards to this which was really quite nice and supportive. Also checked the EPA rules and it looks a little grey area. Not sure whether the "Modified or aftermarket plenum chambers or throttle bodies are not permitted." applies, given the throttle body and plenum were/are from the original car.

However that conflicts with "the converted vehicle is in all respects identical to the production turbocharged/supercharged vehicle." which would seem to indicate that the plenum, throttle body needs to be swapped over to avoid having an argument with the EPA, as Mr Nismoid mentioned earlier. Which is fine, because it explains everything and I'm a happy camper. Well I'd be happier if I had the car, but happier to know I'm certainly not being screwed over by anyone. Didn't really think I was being screwed but naming the thread that would make people look at it.

Still looking to find out whether the shift logic on a R34 *NA* Trans is independent of engine ECU. Apparently (according to DAN666's posts) it is, and this differs from the R34 TURBO Autos. Would love to resolve the issue by throwing a RB26 in and actually have it work, as opposed to having a crushing disappointment a few months down the track due to it!

Thankyou for the responses, SAU'ers!

[Nick Taylor]

hmm sounds like a headf**k that started from workshop A to be honest, who evers got the car now is trying to sort out all of the issues that workshop a would of made.

i would be blaming workshop A.