boost leak question - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

91drftr · 04-29-2008, 04:47 PM

my sr is running nut not like it should, if i try to get on the throtle i dont get the response i should, it kinda lags and im not able to go to full boost i step on the throtle but my boost doesnt go any higher than 1 or2 psi my car speeds up but boost wont, i checked for boost leaks all around the engine compartmen but didnt find any the only place i havent looked is inside the car where my gauge is at...

is it possible that if somewhere along my boost gauge hose ther is a crack would that be causing this?....

punxva · 04-29-2008, 06:24 PM

yes. i had this happen, esp. if your using the crappy white hosing that comes with most gauges, but i'd also make sure again that you havent popped any couplers and such, also have you checked your vacuum lines? esp. the one going to the wastegate

Ineedparts · 04-29-2008, 11:59 PM

Yeah my boost gauge line broke off at the gauge, that shit is so cheap and kinks all over the place, what else is there to use in place of the cheap autometer crap lines? And I would check there because that could be the cause but you should be able to hear it sucking where the line broke

91drftr · 05-02-2008, 01:18 AM

ell finally got around checkin the gauge hose and yup this was the problem now my gauge actually goes up to where its supposed to which is 7psi so yeahthe line had like 4 kinks in it and 2 crack from where it was leaking......now the only problem that i have now is that i cant really full throtle quickly cus i feel a bit like its cutting off im guessing its going to be my fuel pump cus im still rolling wit hte stock one... am i right?

chetos13 · 05-02-2008, 01:23 AM

i had the same problem. if it is like mine then the problem is that the exhaust manifold and the turbo might have loosen up due to the gasket craped out on u or the the crappy brackets that suppose to keep the bolts form looseing up and causing a leak. and when u push the gas all the way down it sputters.check that out.

dark-knight · 05-04-2008, 07:54 PM

not to thread jack, but my gauge when ever i WOT. my boost gauge spikes to like 15psi, then drops to stock boost 7psi. and i have no boost controller or anything. what would cause it to spike like that?

91drftr · 05-05-2008, 02:20 PM

hey try looking at your sparkplugs my friend had this same exact problem and it turned out to be the spark plugs..... check it out

rps13drift · 05-05-2008, 06:48 PM

Quote:

Originally Posted by 91drftr

hey try looking at your sparkplugs my friend had this same exact problem and it turned out to be the spark plugs..... check it out

wat?... How could sparkplugs possibly cause this? Try looking at the internal wastegate arm or the vacuum supply to the wastegate for holes or leaks

posdrift240 · 05-06-2008, 08:07 AM

Quote:

Originally Posted by 91drftr

hey try looking at your sparkplugs my friend had this same exact problem and it turned out to be the spark plugs..... check it out

LOL

This does not add up!!

Has to be something with your wastegate.

04-29-2008, 04:47 PM	#1
91drftr Zilvia Junkie Join Date: Oct 2006 Location: L.A 323 Age: 36 Posts: 588 Trader Rating: (15) Feedback Score: 15 reviews	boost leak question my sr is running nut not like it should, if i try to get on the throtle i dont get the response i should, it kinda lags and im not able to go to full boost i step on the throtle but my boost doesnt go any higher than 1 or2 psi my car speeds up but boost wont, i checked for boost leaks all around the engine compartmen but didnt find any the only place i havent looked is inside the car where my gauge is at... is it possible that if somewhere along my boost gauge hose ther is a crack would that be causing this?....

05-02-2008, 01:18 AM	#4
91drftr Zilvia Junkie Join Date: Oct 2006 Location: L.A 323 Age: 36 Posts: 588 Trader Rating: (15) Feedback Score: 15 reviews	found problem ell finally got around checkin the gauge hose and yup this was the problem now my gauge actually goes up to where its supposed to which is 7psi so yeahthe line had like 4 kinks in it and 2 crack from where it was leaking......now the only problem that i have now is that i cant really full throtle quickly cus i feel a bit like its cutting off im guessing its going to be my fuel pump cus im still rolling wit hte stock one... am i right?

05-05-2008, 02:20 PM	#7
91drftr Zilvia Junkie Join Date: Oct 2006 Location: L.A 323 Age: 36 Posts: 588 Trader Rating: (15) Feedback Score: 15 reviews	15psi spike hey try looking at your sparkplugs my friend had this same exact problem and it turned out to be the spark plugs..... check it out

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04-29-2008, 11:59 PM	#3
Ineedparts Zilvia Junkie Join Date: Jan 2008 Location: Wichita Ks Age: 34 Posts: 449 Trader Rating: (8) Feedback Score: 8 reviews	Yeah my boost gauge line broke off at the gauge, that shit is so cheap and kinks all over the place, what else is there to use in place of the cheap autometer crap lines? And I would check there because that could be the cause but you should be able to hear it sucking where the line broke

05-02-2008, 01:23 AM	#5
chetos13 Zilvia Member Join Date: Mar 2008 Location: las vegas, nv Age: 35 Posts: 206 Trader Rating: (2) Feedback Score: 2 reviews	i had the same problem. if it is like mine then the problem is that the exhaust manifold and the turbo might have loosen up due to the gasket craped out on u or the the crappy brackets that suppose to keep the bolts form looseing up and causing a leak. and when u push the gas all the way down it sputters.check that out.

05-04-2008, 07:54 PM	#6
dark-knight Leaky Injector Join Date: Apr 2008 Location: jacksonville Age: 33 Posts: 70 Trader Rating: (1) Feedback Score: 1 reviews	not to thread jack, but my gauge when ever i WOT. my boost gauge spikes to like 15psi, then drops to stock boost 7psi. and i have no boost controller or anything. what would cause it to spike like that?