Nitrous kicks in and out w/ nothing changed from old setup...
Nitrous kicks in and out w/ nothing changed from old setup... I've had the NOS 5177 installed exactly the way the instructions read for about 4 months. I've been through about 10 bottles since then. It used to run perfectly. But lately it just hasn't performed very well. It will kick in and out through the whole RPM range. It doesn't even matter what bottle pressure it's at. It just will not spray constant anymore. <img border="0" alt="[Banging Head]" title="" src="graemlins/gr_banghead.gif" /> Why could this be? Especially when it did just fine before? I have a window switch (3000-5800), FPSS (came w/ kit), WOT switch (came w/ kit). Could it be the FPSS is not adjusted correctly anymore? Please anything you can think of. TIA.
Re: Nitrous kicks in and out w/ nothing changed from old setup... </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by chikn:
<strong>Bypass the fpss and see if it still does it.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Should I be worried about messing something up by doing this if this isn't the problem? And thanks for the quick reply. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
<strong>Bypass the fpss and see if it still does it.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Should I be worried about messing something up by doing this if this isn't the problem? And thanks for the quick reply. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Re: Nitrous kicks in and out w/ nothing changed from old setup... i have had this problem before and it was the FPSS, i wouldn't just bypass it though, you need to put a fuel presure gauge on there and see if you presure is droping, if it is holing steady then you can bypass it and see if that was the switch, i bet your fuel presure is actualy droping.
if it was on the edge before for some reason the cold weather might push it over, your engine is going to need more fuel to keep up with the denser air, or fuel filer sounds like a good bet.
<small>[ November 18, 2002, 08:28 PM: Message edited by: parish8 ]</small>
if it was on the edge before for some reason the cold weather might push it over, your engine is going to need more fuel to keep up with the denser air, or fuel filer sounds like a good bet.
<small>[ November 18, 2002, 08:28 PM: Message edited by: parish8 ]</small>
Re: Nitrous kicks in and out w/ nothing changed from old setup... Well, I finally got up the nerve to bypass the FPSS. The FPSS must have been bad because now I have another problem. I don't have any traction in 1st or 2nd gear. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" /> <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" /> Thanks for the help!
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On The Tree
Joined: Nov 2002
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From: Crestview, FL
Re: Nitrous kicks in and out w/ nothing changed from old setup... May sound wierd, my buddy had been running the kit on his car for over a year. All of the sudden it got crappy, spray would kick off and on.
The Nitrous solenoid ended up being trash and shorted out on inside.
The Nitrous solenoid ended up being trash and shorted out on inside.
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Verdad Gallardo Re: Nitrous kicks in and out w/ nothing changed from old setup... </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by parish8:
<strong>do you have a fuel presure gauge? did you just bypass it or replace it?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I don't have a fuel pressure gauge. I just bypassed it. Everything works fine now.
<strong>do you have a fuel presure gauge? did you just bypass it or replace it?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I don't have a fuel pressure gauge. I just bypassed it. Everything works fine now.
Re: Nitrous kicks in and out w/ nothing changed from old setup... dude!! your funny, FPSS... fuel presure safety switch, it is designed to shut off the nitrous if the fuel presure falls, if the fuel presure falls and you go lean it only takes a second to go <img border="0" alt="[kaboom]" title="" src="graemlins/gr_bomb.gif" />
if your not going to use the fpss then you should use a fuel presure gauge or maybe you could just watch your 02's, not sure if that would be good enuff though.
you have determined that the fpss is turing off the nitrous, now you need to find out why.
if your not going to use the fpss then you should use a fuel presure gauge or maybe you could just watch your 02's, not sure if that would be good enuff though.
you have determined that the fpss is turing off the nitrous, now you need to find out why.
TECH Junkie
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Re: Nitrous kicks in and out w/ nothing changed from old setup... Those FPSS that come with those kits are ****. They aren't calibrated worth a crap. Mine did the same thing. There is no easy way to calibrate them correctly unless you have acess to someone that calibrates guages precisely. You WILL find it far from what they say it is on. I believe the highest setting, which they are shipped set on, is 50psi.
Tim
Tim
