DynoTune A/F lean shutdown switch
Here's my set-up:
Wet system from HSW
FPSS
MSD digital window switch
DynoTune a/f lean shutdown switch (want to use as TPS as well)
It seems I would have to use a cross between two of the diagrams provided, but I don't want to jack this up.
Here is a link to their instructions.
http://www.dynotunenitrous.com/store...N%20SWITCH.pdf
Best I can figure is use drawing #6 and cross with drawing #4 but not sure.
Someone please help.
Last edited by Bigfoot99; Jan 27, 2008 at 09:17 PM. Reason: Added content
The ground side of your relay (coil/control side) needs to go to the yellow/white wire on the shutdown switch LAST. This provides a way for the switch to turn off your nitrous system. I say LAST because this ground usually goes through the FPSS before it's grounded. You need to send the ground wire from the relay to the FPSS, then from the FPSS back to the yellow/white wire.
The blue wire then needs to be connected to something that only sees power/ground when the system is SPRAYING. For example, if your solenoids only get power when the system starts spraying, tap into one of the solenoid + wires. This way the shutdown switch will only disconnect the nitrous and display LLL condition if you're spraying the car.
The rest of the wires you need can be hooked up independent of the nitrous system.
Good luck!
It's soooo confusing.
As far as the pin issue on the relay we use a bosch relay with the same pinouts as the major nitrous companies NX, NOS. We had one customer that had a Harris system he just upgraded to our relay and install was a breeze. We have never seen a harris system but they seem helpful and I am sure they could help you out on the correct pin choices for their relay.
Dean
As far as the pin issue on the relay we use a bosch relay with the same pinouts as the major nitrous companies NX, NOS. We had one customer that had a Harris system he just upgraded to our relay and install was a breeze. We have never seen a harris system but they seem helpful and I am sure they could help you out on the correct pin choices for their relay.
Dean
Menu 1: Trigger Mode
0=Ground (Low) used as trigger (Use setting 0 for drawings 4, 5, 7, 9)
1=12V (High) used as trigger (Use setting 1 for drawings 1, 2, 10)
2=TPS Input used as trigger (use setting 2 for drawings 3, 6, 8)
There is no issue with the HSW relay, it's exactly the same as the rest; I was referring to the actual wiring diagrams and trying to get them to mesh.
Based on your suggestions diagram 4 does not show use of the blue wire for TPS.
Menu 1: Trigger Mode
0=Ground (Low) used as trigger (Use setting 0 for drawings 4, 5, 7, 9)
1=12V (High) used as trigger (Use setting 1 for drawings 1, 2, 10)
2=TPS Input used as trigger (use setting 2 for drawings 3, 6, 8)
There is no issue with the HSW relay, it's exactly the same as the rest; I was referring to the actual wiring diagrams and trying to get them to mesh.
Based on your suggestions diagram 4 does not show use of the blue wire for TPS.
Dean
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I did not get the name of the guy I talked to but I give him a big
it all makes sense now.Well, it's off to teach class now.
I did not get the name of the guy I talked to but I give him a big
it all makes sense now.Well, it's off to teach class now.


