Had issue nitrous cutting out, it would spray 2nd and then cut out and stay off. It also wouldnt spray out of the hole. I have no idea if my fpss was cutting the nitrous off, if the interface controller was, or what but i'm not happy. Spraying the one gear here is the slip
60'.....1.832
330....5.034
1/8....7.772
mph...89.005
1000..10.097
1/4....12.189
mph...111.382
i have no idea whats going on have a week to figure it out
I double checked on my nitrous outlet window switch followed the instructions and have it on 0 so it will not do first gear lockout and have it spraying from 030 to 058. I am pissed as hell . Car just made 415/450 on a 100 shot and picked up .3 with no traction issues at the track. HELP

 

First thing I would check when you fight an intermitant problem, it is usually a ground or the WOT switch. Check your WOT switch and make sure it is being engaged. Where is it mounted? If that is good, jumper the FPSS. Have you verified the fuel pressure is actually good? Time to go through and make sure all of your grounds are tight

 

Im gonna say its in the window switch or the FPSS.....cauase its not really intermitent, it sprays consistantly thru 2nd gear....so eitehr ur setting are off some how or ur fuel pressure is not safe in first or 3rd.

 

think i might have fixed the issue either that or for some reason i just stalled it up on the street went full throttle and as soon as it flashed to 3k the nitrous kicked in and stayed in through all the gear. only thing i did was move a ground, before the switch panel ground and window switch ground were the same. i'm debating on going back to the track tonight but dont think thats the issue. what do you think worked fine on the dyno...but then again thats one gear only
i'm running nitrous outlets trick window switch with tps activation

 

Go the track and give it another go....aparantly it had soemthing to do with the grounds....im thinking it was throwing off the window switch.

 

i'm going to do that and as far as fpss if i want to not use it only thing i have to change wire wise is combine the wires on both sides of the fpss instead of having them run through it correct? fuel is not an issue i'm pumping 10.8 af ratio across the board so i know its getting fuel even if it leans out up top it would really have to lean out and lean out quick. I'm only spraying a 100 shot

 

Yeah, just connect the wires giong to the FPSS. I think you've got it figured out though.

 

Just let us know how u do!!!

 

got the car to spray out of the hole but then stopped spraying, went 12.10@111.4(well sprayed right after the 60'), next run i sprayed it right out of the hole stalled the car up a little more and car was all over the play and went 1.90 60' spinning like crazy and goign sideways let off got back in it and car went 12.4@110. 90 rwhp and 120 rwtq without traction issues should pick up more then 2.5 mph. i have no idea whats wrong right now. My grounds good on the switch pannel , grounds good on the window switch watched the switch on a run and it stayed on the hole time. Ground on the noids is good its the same ground my purge uses and that my fuel noid uses (shock bolt under the hood). I even tried diff bottle pressures 850/900/950/1000 no luck same results. I'm wondering if the hsw interface is cutting the system off. Not sure how to check that. Like i said earlier i am no longer running a fpss currently

 

If the interface were shutting the system off, it would set a check engine light. What size of stall do you have?

 

he has a 3000. at least he didnt blow his motor like i did tonight.

 

WTF Happened?!?!?!

 

Do u have the noids grounded at the same place? try having a seperate ground for each one.

 

WERD what happened

 

I'm debating in whether he should bypass the window switch for a run or two. It's weird that it only sprays at a certain time, in a certain gear. Two times to the track, 2 different gears.

 

How the hell did you do that? You've got a forged/iron block setup, that sucks. What blew, what blew?





Could it possibly be a TPS activation wire problem? If the signal is not a good one due to a bad connection or something that would make things work intermittingly and come on and off at random.

 

i think i threw a rod. it happened on my first n/a pass of the night. ill prolly just have it towed to top gear and try and figure something out. this really ****** sucks. it was my daily driver

 

already have a check engine light from my 02's with the lt's so not sure if i'm throwing another code. Ground for the purge and nitrous are on one shock tower bolt fuel noid is on another shock tower bolt other side of the car. car has a 3k stall not sure on the str. the tps sensor is tapped right at the computer. As of now i have the car spraying down low if i stall it up like i do n/a it takes a sec doesnt spray right out of the hole. If i stall it up higher to like 2k it hits out of the hole. The first runs this morning i was stalling up lower then normal figureing i was going to bake the tires off. Anyways basically its not spraying up top it seems like , on every run and my mphs show it seems like my system gives the initial hit and then boom it done shuts off

 

Scan your codes in the PCM and see what they are. Make sure the window switch is not cutting off as that will trigger the Interface off and shut down the system. 10.8 is pretty rich, you can lean it out a bit (try to shoot for 11.8). You are running the plate as a wet kit correct? If you are you don't need to add much, if any, fuel via the Interface (I think I read somewhere you had it set at a 80 shot or something). Is the FPSS bypassed?

Matt

 

right now i have it at a 55 shot fuel on the 100 shot pill my fuel was below 10.0 so used the interface. On 75 my af was 10.5, on 85 it was like a 10.3-10.1. any easy way to check to make sure the window switch isnt cutting off? the fpss is bypassed brown wire goes directly to the relay