I have my nitrous system components (opener,heater,and purge) running off of a relay. The ignition lead off of the relay is connected to the "Acc" post in the front fuse box in the engine bay. The heater does not turn on but everything else does. Why? I have looked over the system and everything is intact. Any help here?
Thanks.

 

What kind of heater is it? Some run with a thermostat, so if its not cold enough it won't turn on. Others run with a pressure sensor and only come on when bottle pressure is below a certain psi.

 

It is setting at 900 psi cold....the NX is operated by pressure and is supposed to run from 950 to 1050. I wonder if there is a conflict with the gauge and sensor???
Kinda weird.

 

Duh...I will take inside tonite and see if I can get the pressure down some and then see what happens.

 

Take a multimeter and check the continuity of the pressure transducer on the bottle heater. That would be easier than taking everything apart...

 

Don't have access to one of those.....what if I placed a piece of metal across the poles. Would that in effect bypass the transducer?
Thanks.

 

You can get a cheap multimeter at the hardware store or Kmart Wal mart for $10-15 dollars. It is a hell of a lot easier to troubleshoot electrical problems. I wouldn't risk shorting anything, it will only tell you yes or no when it comes to current flow.

 

yes, you can bypass the transducer (temparily) to test your other wiring.

If you were close, i would come take a look, but thats kinda a far drive

Ryan.

 

I ended up just putting a bag of ice on the bottle to get the pressure down some. Still not heating... I did take a screw driver and placed across the poles on the transducer and no evidence of power. The switch is powering up so I know power is there... Is it common for a transducer to go "bad"?
I have the relay that powers everything connected to the 10 amp "Acc" slot in the fuse box....this should not hender anything....should it?

 

do you have the main power wire running to the battery for the heater?

Ryan.

 

I used to. It is now running to the relay. When it was hooked directly to the battery, it would drain it if I let her set over time.

 

Well, just got back and used a test light to let me know what's up.....I may have to move this to the electrical forum, because this is kinda weird.
I tested the transducer with switch on an got a signal on both poles. I was like wtf? I did feel good about seeing that power was there....but get this....the flippin' heater works now. All I did was test and now it works.
I got a freakin' ghost or I am losing my mind. I will test again tomorrow before I post this...that makes no sense as to why it works just by a test.