help with dead turbo

[canadian booster]

if i have a turbo that's not working properly, or at all, but the other one is.. i would still get some boost right? maybe i have 1 non functioning turbo?

sorry to beat this topic to death, it's just frustrating and difficult to figure out

[vulcanrush]

no, i don't think you get any boost if one turbo is out, someone please correct me if i'm wrong.

[Z31toZ32]

have you pulled off your charge piping from the turbo to the intercooler to see if it is full of oil?

[legion]

When I first bought my Z, it was slower than a Honda Civic running on 2 cylinders...it had no get up and go whatsoever and my boost never went above 0psi. Turns out that my driver side turbo was seized up (turbine wouldn't spin at all). However if your car is still building boost, I don't think this is your problem, but could be something with the turbos.

[DanDrath]

Sean sorry if you already answered this question but have you checked compression as well as looked for boost leaks?

[canadian booster]

That'swhat I keep coming back to because it doesn't hold the boost very long, it drops to almost zero when I shift gears, but I can't find any leaks.. I'm going to borrow a bigger compressor and see if I can get 5lbs in the to test

[DanDrath]

see if u can get ure hands on a smoke machine too

[canadian booster]

walmart has them for sale for $50 for halloween.. i was seriously thinking of getting one just for car repairs LOL
listening for hissing noises sometimes doesn't work so good

[canadian booster]

just bugs me that if i'm running 12-13psi (accoring to EBC) i can't keep up to my friend running stock 9 :P maybe that means if there is a boost leak, it's after the sensor that detects boost pressure..

[BigTDogg (MA)]

Different kind of smoke machine...

Boost drops to 0 when shifting because you're off the throttle. That is normal.

Boost leak test, followed by compression test is what I would recommend.

[300ZXttZMAN]

Yea compression test.. Do you notice any smoke coming from the exhaust??


Suggestion: If you think one of the turbos are bad. You should get under your car with a hefty flash light and see if you can spot any oil around them...

Question for someone with more knowlege than me: Is it possible that his knock sensor malfunctioned and put him into "saftey boost"???

_______________
Keep us updated Sean..

[BigTDogg (MA)]

He would get a code 34 if checking codes on the ECU (IIRC, 34 won't generate a check engine light) and would be pegged at 7psi.

[canadian booster]

everything is dirty under there since i lost my .. underengine cover flap thing ..
no safety boost for me because i run the EBC.. i think..
i'll compression test all 6 cylinders this time instead of 2 and see

no smoke, white or black..

i'm glad you said it's a different smoke machine because i was gonna buy one LOL

[300ZXttZMAN]

He would get a code 34 if checking codes on the ECU (IIRC, 34 won't generate a check engine light) and would be pegged at 7psi.

Good info!

[BigTDogg (MA)]

everything is dirty under there since i lost my .. underengine cover flap thing ..
no safety boost for me because i run the EBC.. i think..
i'll compression test all 6 cylinders this time instead of 2 and see

no smoke, white or black..

i'm glad you said it's a different smoke machine because i was gonna buy one LOL

Black smoke out the tail is just running rich, no big whoop

White smoke (not steam) is coolant, and that is a big whoop

Blueish white smoke is oil, and that can be a big whoop, or a not so big whoop.

EBC won't do safety boost if you eliminated the OEM boost solenoids.

Compression check with a strong battery in the car, on a warmed up engine.

[canadian booster]

compression test question... the tester i have has a metal end you screw into the sparkplug hole.. k easy.. but the rest of it is rubber, how the eff do you turn it tight enough so far down, or is rubber hose tension enough?

[BigTDogg (MA)]

Just turn it with the hose. Don't use any extenders, but hand tighten it best you can with the hose. It's crimped on to the hose pretty tight (mine is anyway) so you shouldn't have an issue getting it out. A little bit of grease (very little bit) on the threads will insure smooth install/uninstall.

[Ace2cool]

Lol, I rented one from Auto Zone, and the damn thing seized up on me when I was trying to take it out, and busted the hose off the crimp. I had to use a really long screwdriver to turn the metal with the limited helm of the now semi-attached hose. I was kinda pissed.

[BigTDogg (MA)]

Lol, I rented one from Auto Zone, and the damn thing seized up on me when I was trying to take it out, and busted the hose off the crimp. I had to use a really long screwdriver to turn the metal with the limited helm of the now semi-attached hose. I was kinda pissed.

Mine has an extender on it, which threads on to the threaded part crimped to the hose. Yeah, that got left behind one time so I feel your pain. Never used it since, the extension that is.

[canadian booster]

may as well keep this nonsense in this thread.. update ..
last night after work i noticed my engine sounded .. different. not bad or rough, just different from what it normally sounds like, i listened around and checked this and that, nothing seemed out of place that i could see from up top.

this morning i drive to work, i give it 3/4 throttle on the onramp to merge into traffic and... nothing. i'm accelerating, but no boost at all, i look down at the EBC and it's flashing red and buzzing, i have the 'warning system' set to 15psi.. wtf?

i baby my Z all the way to work, and on the last stretch i give a little WOT and i get the same crappy boost i've had all along, but still boost..

i'm starting to think the source of my woes is that damn ebc. i didn't install it, i don't know if it was done right, or if it's even functioning properly. should i just rip the damn thing out and go back to stock or what do you think?

[300ZXttZMAN]

Hmm no clue one thing for sure though i dont think it would have to do with the the ebc not installed right... Its installed right because didnt it use to work flawlessly??

[canadian booster]

the ebc works, as in.. if i change the settings, the car handles differently.. so maybe it's working right some of the time, but has a leaky hose somewhere?

ever since i bought the car i've smelled burning rubber after i boost on a hot day of driving when the car is stopped.. maybe one of the 6 vacuum lines for the ebc rubbed against something hot and melted and now has a big hole in it.. it's raining and i'm at work, hopefully it clears up by lunch and i can go have a quick look

[300ZXttZMAN]

How hot is a hot day up there?? Cause down here in Louisiana a hot day is like 102*F haha

[canadian booster]

"Hot" here is about 32C ... Heh

[300ZXttZMAN]

89.6 ºF

LOL^

[NolimitZ32]

Really? 102 is normal for at least 4 months out of the year here, gotta love the 100% humidity too

[canadian booster]

ya but it gets to -45F here in winter, so.. 89 is pretty hot! for us! haha

[300ZXttZMAN]

Really? 102 is normal for at least 4 months out of the year here, gotta love the 100% humidity too

Yea haha that is crazy 89*F is as hot as it gets up their in canada.. 102 to 90 is normal for most of the days during the summer but reguardless of how hot it actually is the 100% humidity makes it feel like a damn Chinese sweat shop..

You ppl up north imagine waking up at 7 in the morning walking out side and its already 95 degrees haha..

[canadian booster]

Ok I did compression tests.. 140, 130, 130, 135, 120, 130 ..
One coil pack had a crack in it so I could see the damn copper thread inside, one spark plug was so loose I didn't need a wrench to loosen it.. Bah!
So now the car is ticking.. Wtf? Tick tick tick

[Ace2cool]

How's your oil level/ pressure? Gonna move this to tech, cause it's getting to be that kind of thread.