Possible Maf problem, need help diagnosing

[aN4rk1]

Thanks to a good member here, did a TON of checks last night.
- Replaced the Coils: Didn't make a difference
- Replaced the coil harness: Didn't make a difference
- Replaced igniter: Didn't make a difference
- Used a Nissan consult cable to check timing, and other various things, Timing was SPOT on, 20deg form TDC at idle at 950 RPM
- Played with CAS a bit, Didn't make a difference

Iam totally leaning towards a boost leak now. I will either have to get a checker or make one myself.
Will check wastegates over weekend
Suggestions always welcome

[TW]

did you check your plugs?
Sounds like it could be carbon fouling.
check for codes. iirc, a boost leak throws a maf code

[TW]

What happens when you boost it? misfires and black smoke?

[aN4rk1]

I havent specifically checked the plugs, but I will. I checked the ECU for codes, nothing. When I boost it builds boost to about 3.5 on the stock gauge and then no more, it seems as there is hesitation. No misfires and only black smoke for carbon

[aN4rk1]

Ok so after more playing around, it seems that the car makes great boost down low but does not make boost in high rpm. Can anyone tell me what actually engages the 2nd turbo?
I think there is a solenoid or something that is gone which isnt engaging the 2nd turbo and it gets no boost from it.

[91GTRR32]

Deleted what i previously said.

[91GTRR32]

Oh to continue on with this i just read basically everything and one thing to add to is im having the same issues as this but.... when my clutch started to slip i was still driving it and on the highway i hit 180 km/h but that was revving over what was actually being applied, meaning the clutch was slipping REAL bad while i was letting the rpms sit at 7k and it riding the clutch hit 180 km/h. I couldnt even hit 150 km/h when i was driving it normally it would choke as he was saying but when i rode the clutch it hit 180 but took a while and didnt do it powerfully.

[MKIV]

Just to let you guys know i bought this car from this douche and he told me that the only thing it needed were injectors, now this problem is mine and i live in a small city with no one to properly diagnose this issue. I wouldnt suggest anyone buy anything from this guy because he will tell you anything to get whatever money you got in your pocket. It wouldnt have been a problem if you told me that there was an issue. Not lie to my face after me constantly asking you if the problem was for sure injectors. Douche.

Thanks douche

Bumping a 1.5 year old thread to say this?
That's a rather immature way to approach the situation isn't it?

I understand your frustration, but you couldn't have been completely oblivious to the potential of issues with buying a 21 year old sports car. You really have no one to blame but yourself. If I recall correctly, Rony sold this GTR for a substantially low price compared to other GTR's on the market ($7000?)

Please use the designated forum feedback section to vent out your frustration, and avoid posts like this in the future, admins and moderators don't like having to clean up e-beef.

[91GTRR32]

I apologize im not trying to make the guy look bad he was very nice when i was talking with him and all. Not trying to be a douche myself. And if he sold it for 5k or 15k the thing that you just dont do is lie about something when you are selling it. I would have saved up money accordingly if i saw this post not an hour ago. I saved up for a paint job, wheels, injectors, a clutch, new brakes fully, but now that i recently stumbled upon this it looks like ill be spending that money paying some whack job to tell me there is so much more wrong than what actually is wrong. I would have just like to have known what the real problem was with it. And it will be in feedback next time and if thats if i do complain in the first place which i rarely do. On top of all that on my way home i realized we miscounted and i called him telling him that i have more money that belonged to him ($300) still smiled in my face and drove off.

Edit: And your right, its my own fault.

[steveo1502]

Mine had same problem, was the maf, they break inside, there's a DIY to fix them, worked perfect for me, and didnt cost a dime .good luck

[91GTRR32]

Whats a DIY?

[MKIV]

"Do it yourself"

Probably somewhere on this forum under a sticky, if it's as common as other members are making it seem. Of course, if you aren't hands on or don't have the tools to DIY, there's no shame in that either, as there are a few shops in the GTA that can help you out.

[91GTRR32]

Im both hands on and have the tools, anyway i could get a link?

The MAF's are the little square boxes right after the air filters right

[steveo1502]

It's very easy , just have to cut the silicone to get the sensor apart, and resolder the connections, I don't even own a solder gun, just heated a screwdriver and touched it on there, lol

[91GTRR32]

You seriouse? lol. ok so i take out the chip and take the wires off the sensor n put em back on the same way? what does that do