how/when is your setup set to spray?

 

I am runing a step colder plugs with copper ends.
I am using 110 or something octane race gas that is at the track
I get no CEL at all
I have no Air/Fuel readings.....
The temp outside is about 90 or so......I dont have any engine temps
The AFC dosent see any knock but who knows how good that thing is
All wires are hooked up right and I am using a ZEX kit so eveything is in the little purple brain

Here is some more info. When the car shuts down the wheel locks up and all the lights in the dash come on and the power turns off. I have no radio or anything. I dont know whats going on and I wish I could figure it out.....

 

That sounds a little scary.

 

Try alot scary

fairladyz541 it sounds like an electrical/ wiring issue if everything shuts down they way you say it does. Do you know where and how power is supplied to the nitrous system and also like Rhythmn asked when is the Nitrous set up to spray( full throttle or push of a button)? I would love to see what is happening to the electrical system after you spray, I wonder if it is drawing to much power from the electrical system and that is why the car shuts down.

 

The Zex box taps into the TPS wire and only engages at WOT... I'm agreeing with the above guys on electrical... something definately weird is going on there electrically that isn't related to engine performance and such. Especially with the information about the radio/lights and such.

Where did you hook up the power/ground for the Zex Box, those selenoids draw some decent current.

 

Power is coming from the SAFCII which is coming off the ECU.....Maybe thats the problem, but why would the car just shut down.....

 

Well what happens to a car when it is running and you take/remove power from the ECU?

Anybody know how many constant and switched 12V wires a tC ECU has?

 

That's your issue.

Your SAFC-II draws power directly from the ECU, which doesn't have a ton of available amperage to run those selonoids... Plus... If your SAFC-II loses power, there goes your air intake volume reading at the ECU along with many other things... causing an engine to be very upset.

Your 12v lead to the zex box should be a switched lead from the battery, or at least a high amp source with low power draw from other items... like the 12v cig lead.... change that asap and let us know what happens...

Should fix your probllem.

 

You might have hit the nail on the head with that answer ^^^^^ :D

Time for him to change it and see if that helps...

 

^^This is Cool, I like this thread. Feels like I'm the one getting help....lol. I'm eager to know if this fixes the problem, so make the changes ASAP, and let us know.

 

rhythmnsmoke u was asking me how my N2O was set up well I just have it on a push button switch and I just hit it as soon as I go into second gear when Im at the track.

 

And spraying all the way through 5th? Why don't you spray in 3rd instead so you can utilize traction better instead of spinning in 2nd?

 

^ Agreed... N2O is useless for our tCs 1st and 2nd gears...

I suggest running the Zex kit with included tps switch, switching on coming out of second with a MSD digital window switch to prevent spraying at too low RPM or past the rev limiter... it's my setup and what is the safest and definately most effective.

 

I dont have a winndow switch but I do have the tps I just havent hooked it up yet. And i tried spraying after second gear but I ran my best times when i did spray in second gear. When I say spinning I'm not blowing the tires off or nothing I'm still moving prety good.

 

Sorry for the highjacking, but the Tc is only running I/E and a 55shot and pushing those numbers?? If thats the case why isnt there that many Tc with sprayand with bigger shots??

 

because 55shot is a really safe shot, assuming you know what you are doing. I would like to see the numbers on a 75shot, but not that many people are running it, w/dynos.

 

wish i could help you out but i forgot my password on directechs.com

 

just wondering what system everyone is using for the n2o... cause i havent heard anyone get the system i have, and i need help with it if anyone has any ideas... its the venom recluse 500, fyi

 

Thats okay.. I have a password for it, plus it wont tell you anything indepth like ECU pin outs. I have a better source for all that stuff and more.


So Fairladyz have you had a chance to change your setup around?

 

My bottle is empty right now so I have to wait.....