fooling kit for the TPS for WOT

[peanotation]

I want to hook up a push button or second switch to tell a Zex dry kit when to start spraying. Is there a way to "fool" it into thinking that the car is at WOT by re-routing the throttle position sensor to a switch to send a signal that the car is at WOT. i dont want to floor my car with the system armed and be spraying.

 

[peanotation]

with a little more research, i found out that at WOT, the TPS sends a 5.0V signal to the PCM. and at idle, it's 0.9Volts. Essentially, I should be able to just connect the TPS wire from the Zex "brain" to an independent 5.0V switch so i can spray when i want. The Fuel pressure regular tapped into the brain will also let the brain know how much nitrous to spray, so there won't be a problem of running too much nitrous compared to fuel.

Or did I miss something entirely?

 

[peanotation]

well, i called a ZexTek and he said that was cool, and he's done it on his setup and other setups. thanks for everyone's help basically just send a 5v signal to the TPS and it will think you're at WOT. and thus start spraying.

 

[kpt4321]

Why?

You only want to spray at full throttle.

If you want to go WOT without spraying, then just disarm the nitrous.

 

[sjwelna]

Yes, that will work.

Why?

You only want to spray at full throttle.

If you want to go WOT without spraying, then just disarm the nitrous.

Maybe he's looking for better part throttle drivablility??

 

[peanotation]

i want to spray on command, i'd only spray at wot, but i dont want to arm the nitrous while at wot, that's kinda like turning on your car and instantly racing it, i want to have a "power" switch and "spray" switch, so to speak

 

[noreaga0221]

i want to spray on command, i'd only spray at wot, but i dont want to arm the nitrous while at wot, that's kinda like turning on your car and instantly racing it, i want to have a "power" switch and "spray" switch, so to speak

It no different than going wot and having the turbo spool up. I have the zex tps avtivated system, i don't spray in 1st or 2nd so when i hit third i arm it and it sprays. no need for extra switches and dumb shit like that.

 

[kpt4321]

Exactly. The nitrous ALREADY HAS A SWITCH THAT TURNS IT ON OR OFF!

Why do you need two of them?

 

[peanotation]

hmm, i just always assumed it was unhealthy to be flooring the car and just arm the system. i'll take your guy's advice though, shitty thing is, i already bought another flip cover switch

 

[noreaga0221]

Sell it, and maybe consider selling the nitrous setup too. :thumbdown

 

[boostedinaz]

hmm, i just always assumed it was unhealthy to be flooring the car and just arm the system. i'll take your guy's advice though, shitty thing is, i already bought another flip cover switch

So let me ask you this, why is it a different situation when you push the button as opposed to just arming the system??? There is none. The way it is is just fine.

Michael