I have a Tru-Boost EBC and wanted to implement it into a failsafe for the Aquamist system. From what I understand, all that has to be done is cut one of the solenoid wires and connect one side to pin 11 and one to pin 12 on the DDS-3. However, when the solenoid is not connected to the Tru-Boost, it flashes "er s" meaning error solenoid and the gauge does not read pressure. I need to find a way of having the gauge still operate as a boost gauge when the meth system is off or in failsafe mode. Someone mentioned that a resistor be wired in to trick the gauge into thinking that the solenoid is still connected. I tried to draw it out and I cannot figure out how to implement this idea. Has anyone done this before?

 

How about a switch in the circuit, without the boost button on the DDS3 activated (= W/A not armed/turned on), and a switch enabled the Tru-Boost does not know about the junction box or its settings and it is giving commands or is otherwise in control. With the boost button the DDS3 enabled and the Tru-Boost switch disabled the junction box and the DDS3 give commands? Its an extra thing to do but it sounds OK to me....Richard would be the one to confirm that its a decent idea and would work....provided you liked it or some one else does not come up with a better idea.

 

Can you send me a wiring diagram or the user manual of the Tru-Boost.

or meanwhile...

You need to cut the "pulsed" wire to the BCV. Connect the gauge end to pin 11 of the DDS3 JB and the BCB side to pin 12. You need to solder the 39ohm resistor to the JB.

 

Email sent with the instructions. Thanks

 

My suggestion is to simply buy the MAC solinoid - (I have them in stock) and you run the AEM solinod like it was a MBC

Al

 

Not necessary. Richard sent me the wiring diagram to set it up with only the AEM solenoid.