View Poll Results: How many have replaced N75 valve in 996tt/GT2
2001 996tt/gt2 REPLACED
6
20.00%
2002 996tt/GT2 REPLACED
3
10.00%
2003 996tt/GT2 REPLACED
1
3.33%
2004-5 996TT/GT2 REPLACED
0
0%
Never Replaced
13
43.33%
What is N75 
?
?
7
23.33%
Voters: 30. You may not vote on this poll
Poll: How many have replaced N75 valve?
#4
09-26-2012, 01:04 AM
Basic Sponsor
usually the problem is in the hoses connected to the N75 not the unit itself and by changing the unit you are also fixing the hose leaks... just an observation...
__________________
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
#5
09-26-2012, 05:11 AM
Join Date: Apr 2008
Location: Colorado
Posts: 5,214
Rep Power: 396 
Hmmm, interesting. when I removed my y-pipe, I did not even think of removing the lines going to the N75, that would make the procedure a lot tougher.
The N75 valve is very cheap for a porsche product
#6
09-26-2012, 06:15 AM
I also now have a spare N75 ready to go in case I need it.
#7
09-26-2012, 06:31 AM
Registered User
Join Date: Dec 2009
Location: Maryland USA
Age: 48
Posts: 327
Rep Power: 31
I checked all my hoses on mine before changing and everything was on tight and saw no splits or cracks in them. The car would boost 1.2-1.3 before now it boosts 1.3-1.4 on same tune after changing it out. I have a feeling it may have been failing I while back as the car was always a hair short of the desired requested boost level on my old FVD flash.
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#9
09-26-2012, 10:31 AM
Basic Sponsor
I checked all my hoses on mine before changing and everything was on tight and saw no splits or cracks in them. The car would boost 1.2-1.3 before now it boosts 1.3-1.4 on same tune after changing it out. I have a feeling it may have been failing I while back as the car was always a hair short of the desired requested boost level on my old FVD flash.
boost leak test is at the Y pipe... ... it will find everything...
OR if you have durametric you can log the n75 see if it works... simple..
__________________
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
#10
11-02-2013, 10:29 AM
Do you have a schematic diagram to show the N75 lines and hoses direction ?
TIA
#11
11-02-2013, 06:05 PM
Registered User
Join Date: Mar 2008
Location: Montreal Canada
Age: 69
Posts: 2,804
Rep Power: 266
Was for Markski but may be I can help...on the pictures you will found the location in the system, the valve itself (996-605-155-00) and the valve location in the engine compartment....
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