question for Nitrous Express
12-28-2013, 03:01 PM
#1
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question for Nitrous Express I have a 2000 ta with a fpss for 50 psi. My nitrous hit started acting funny. So i decided to check it out. My solenoids are fluttering when engaged. So i grounded my nos solenoids by bypassing the safety switch and they worked fine. But i thought the fpss was either off or on not intermittent. So is the fpss bad or is my fuel pump getting weak?
Last edited by ejbta2; 12-29-2013 at 11:36 AM.
12-30-2013, 10:59 AM
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factory fuel pump, the solenoids will do it while idling. I checked the fuel pressure 100 miles ago. I am spraying 100 shot. I bypassed the fpss and ran the car and a/f was 12.4.
12-30-2013, 11:49 AM
#6
Could be that under WOT your pressure drops to right about 49-51, causing the FPSS to engage and disengage the noids. You can try dropping the FPSS to like 45 psi or so and see if that fixes it. Stock pump may be going out, that's why it use to work and is starting to have problems now, the pump is starting to lose it's ability to hold pressure.
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01-02-2014, 12:23 AM
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You should consider investing in a decent fuel psi gauge. A simple diagnostics hand held unit will do and is a helpful tool to have workin out any fuel related Iissue's in general.
Last edited by josh414; 01-02-2014 at 12:34 AM.
01-02-2014, 09:14 AM
#10
I have a 2000 ta with a fpss for 50 psi. My nitrous hit started acting funny. So i decided to check it out. My solenoids are fluttering when engaged. So i grounded my nos solenoids by bypassing the safety switch and they worked fine. But i thought the fpss was either off or on not intermittent. So is the fpss bad or is my fuel pump getting weak?
Thanks for your time,
Garrett