New Z questions!

[WhiTTe Z]

Just got my first Z a couple weeks ago. I'm 20 years old and am just getting to know this car for the first time. Eventually I will know it's ins and outs as well as you guys but in the meantime sorry if some of my questions seem n00b.

That being said...

Let's play "name that plug"...I guess I should start by saying that the car fires and idles fine. Also, a previous owner installed an Apexi SAFCII which I have no idea how to use. there are some loose plugs in the engine bay... those circled in red are those in question


SAFCII

#1



#2


Closer




What is this hose?





This is what makes no sense to me.. this Z seems to be stock except for the HKS cat-back, single intake and Z1 ECU... yet the ECU reads this

[Oh Em Zee]

i'm making a pretty safe assumption that the ecu is tuned to 8xx cc fuel injectors.. holy...crap...
run rich much on startups?
the blue are boost lines from the T. i remember branching off that several times for the wide band.
my car is locked up outside, with a cover on it because my parents bought a bloody new honda, taking my garage, otherwise i'd take some pictures for those loose connections. they look familiar, just cant put a name on it.
everything seems normal, but the injectors are effing huge. seriously.

[WhiTTe Z]

I know that the sticker on the ECU says 850's but I kind of doubt that they actually are because 1) the owner I got it from said that it had stock turbos and 2) It also has the "Dual" intake circled when it's actually just a single... then again I have yet to do a thorough check, this car may very well have unknown mods.

The guy I got it from had the car for like 5 years and put like 10 thousand miles on it, he didn't seem to know too much about the car. I am the third owner and the first owner is the one who did literally all the work.

[evildky]

just because it has stock turbo's doesn't mean it doesn't have giant injectors, have a look at the injectors, I bet they aren't brown or grey, meaning they are likley aftermarkets, also is the safc still hooked up> someone could have used the safc to dial back the fuelt o uses that ecu with smaller injector (which is completely retarded and if some bone head actually did that they should be flogged)

the 2 connector ont he passanger side look like the boost soleniod and egr valve IIRC

the vac hose cgoing across the engien bay shouldn't be there, and your pic doesn't show either end for us to help determine what it's going to/from

[WhiTTe Z]

I'll check the injectors. The SAFC is still hooked up although I have no idea how to use it and don't want to mess with it, if anyone has any knowledge of how to use it any advice would be helpful.

[CrazedZ32Owner]

was the adjustable suspension standard on the twin turbo's??? if so one of those connectors might very well be for that if not ignore what i just said

[WhiTTe Z]

it does have the adjustable suspension so could be..

Also about the injectors, it doesn't seem to run any more rich than normal, doesn't blow smoke or anything just smells.

[evildky]

the TT came stock with adjustable suspension, but those are not the correct connectors for the suspension

ois the 4th digit in your cars vin a "C" if not you bought a swapped car not a factory TT which explains why you don't have adjustable suspension, and you'll want to remember that when shopping for certain parts

also if the car is a swap they might not have run the stock boost soleniods, meaning you don't have saftey boost if somethign goes wrong

and the fact that the car isn't runnig rich tells us nothing, it could have huge injectors but tuned properly it shouldn't run or start rich, thats the point of the ecu and the safc

[WhiTTe Z]

i think you misread what I said, the car does have the adjustable suspension and the 4th digit is a "C" ...

Does anyone on these forums have a SAFC on their Z32 that you guys know of? I just dont understand how to use it there seems to be a fuel map that someone tuned each RPM to

[evildky]

it does nto have factory adjustable suspension in the pictures

[WhiTTe Z]

how can you tell? maybe it was removed by a previous owner, it has the little switch in the cabin for sport/touring

[DeeZX]

how can you tell? maybe it was removed by a previous owner, it has the little switch in the cabin for sport/touring

The previous owner probably had a suspension upgrade done and probably took out the aftermarket suspension and replaced it with and NA suspension or the were having an issue with the TT suspension.

Excuse the dirty engine bay, but here are some photos of the electronic suspension controller:







Picture 1: the small gray connector goes to the electronic suspension controller (left side)

Picture 2: The white connector is either for your EGR solenoid or your AIV solenoid can't remember; the black square shape connector goes to the waste gate solenoid (probably deleted in place of aftermarket unit) ; the small gray connector goes to the electronic suspension controller (right side)

Picture "what is this hose?": Judging by the filter on it as seen in one of my pictures



it seems to be a vacuum line for aftermarket BOVs, (If you don' have the aftermarket BOVs, they may have been replaced with the stock units and they just left the vacuum line and filter)

[WhiTTe Z]

Sorry for the confusion Evil, i'm an idiot. Thanks DeeZX that answered pretty much all of my questions.... it doesn't have BOV's and the blue vaccum line does seem to have a manual boost controller on it. I drove the car for the first time today and there's something wrong with the boost. At 3500rpms it hesitates for anywhere from 1-4 seconds before boosting... especially at full throttle. Sometimes it seems to boost fine and others it doesnt. The stock gauge reads about 13 pounds. I think it has something to do with the SAFC or a boost leak... im gonna take more pics

[WhiTTe Z]

Drove the car again today, it took literally a half hour of driving before the car would boost at all... Until then it just hesitates and backfires at 3500rpm... once it warmed up it pulls hard but why would it take this long?

[evildky]

so the car idles well but ddrives like azz? ifI were you I'd have a look at those injectors, if they look stock I'd rip out that safc (I hate those things, people are too lay to do it right) and put in a stock ecu

[WhiTTe Z]

i dont know what size the injectors are but they have red caps

Also the car has the piping for dual intakes but has 1 cone and the other end capped off.


And I want to take the SAFC out but I don't want to f*** the engine up if the Z1 ECU is tuned to dual intakes and 850s

[evildky]

if the injectors are red they are nto stock, so they are probably 850's as the ecu suggests (or they are smaller btu still aftermarket) I'd remove the saft and see how it runs, you might want to locate stock ecu and injectors and the propper intake piping, and then you cna sell off all your bits to cover the cost

[WhiTTe Z]

okay so ive been working on the Z some more and im gonna post some pics. If you guys notice anything out of the ordinary, please feel free to comment. I am having boost problems, believed to be boost leak. I am also having starting problems with the starter/ trigger switch not getting power. Im sick of my Z looking like this in my garage, it needs to be driven.



Ive had the car for a little more than a month and this is how I bought it, I didnt do any of these mods and i'm still tryin to figure out what the previous owners were thinking...

I will number the pictures so you guys can easily reference them when replying

#1
Boost controller i think, piece of shtt


#2
Ground terminal


#3
Do these springs look stock?


#4
Shtty Doolz intake with one end capped off, what could be the reason for this?


#5
What is this disconnected plug? front passengers side


#6
What's with these vacuum/boost hoses?




#7
What are these? AC lines I assume



#8
Whats this small plug by drivers side main fuse box

[txQ45]

The last connector goes to the AC compressor,, the one under the front facia is for the AC dryer, Blue hoses for boost controller. Looks like whoever had it before striped it before selling it..





Nistune Dealer
visit http://www.aaa-hipeformanceauto.com

[xclusivez32]

7 shows that the a/c lines have been removed the piping coming out of the firewall

[WhiTTe Z]

thought so, so has the compressor been removed?

[robomatic12]

Compressor is on the bottom right hand side of the engine as you are looking at the engine facing the rear of the car. Its big and bulky and will have some thick lines running to it. It may or may not be there

[WhiTTe Z]

bumppp

[robomatic12]

For what? Whats your question? You have not shown us a picture of the area in the engine bay where the compressor is for me to be able to tell you if you still have one or not. Regardless if the lines are gone you may still have a compressor bolted to the engine.

[DeeZX]

Picture #7 the small tube is from the EGR valve and there should be a vacuum hose going to the EGR solenoid, Then again, the my have elimiante the EGR valve.