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Attessa Solenoid

tricstar
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tricstar Mentor

tricstar

Posted
Posted (edited)

I'm trying to wire up a 4wd contoller and the instructions say to connect to the attessa solenoid, which is circled in blue below, the instructions are for a R32 whereas this is a R33? the 32 has a single solenoid, piece of cake. but mine has that dumb bell shaped/double solenoid which has wires coming out of both sides in the middle?

has anyone hard wired this solenoid and know which side to tap into? I'm leaning towards the one closest to the feed and pressure lines ( one with the sticker on ) ?

anyone?

post-48287-0-01531200-1346164051_thumb.jpg

Edited by tricstar
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tricstar Mentor

tricstar

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i thought this would have been done at the g-meter sensor under the drivers console, no connection incoming from attessa solenoid there?

no, this one ( Full Race ETS-Pro ) replaces the G-meter sensor and wires directly into the attessa solenoid Valve..?

Risking Grand Master

Risking

Posted
Posted

Use the one closest to the pressure feed.

Also if your hard wiring it and not using the attessa control unit do not follow the instructions where it says to wire the pump up to a 30amp relay from ignition or ecu output.

You must use the inbuilt pressure switch to cut the pump motor out and it requires atleast a 40p relay and circuit breaker

Preferably to be more accurate install a new adjustable pressure switch at the actuator on the rear of the transfer case and use that to cut the pump relay out.

tricstar Mentor

tricstar

Posted
  • Author
Posted

Use the one closest to the pressure feed.

Also if your hard wiring it and not using the attessa control unit do not follow the instructions where it says to wire the pump up to a 30amp relay from ignition or ecu output.

You must use the inbuilt pressure switch to cut the pump motor out and it requires atleast a 40p relay and circuit breaker

Preferably to be more accurate install a new adjustable pressure switch at the actuator on the rear of the transfer case and use that to cut the pump relay out.

Hey Brad, do you know if the other end of that dumbell shaped solenoid is for priming the system on start up ? if so do I just leave that all in tact and it won't effect how the controller works?

I've since decided to not hard wire it and wire up TPS, ground and power at the factory ETS-pro computer and just have the Full Race unit control the solenoid, so that way pump and pressure switch stay as is..

not sure if I'm the first to install one of these in anything other than an R32 but finding it hard to get some answers, like R33 ETS-pro computer pinout diagram.

thanks for your help Brad

  • 3 weeks later...
Full-Race Geoff Rising Star

Full-Race Geoff

Posted
Posted (edited)

Use the one closest to the pressure feed. Also if your hard wiring it and not using the attessa control unit do not follow the instructions where it says to wire the pump up to a 30amp relay from ignition or ecu output. You must use the inbuilt pressure switch to cut the pump motor out and it requires atleast a 40p relay and circuit breaker. Preferably to be more accurate install a new adjustable pressure switch at the actuator on the rear of the transfer case and use that to cut the pump relay out.

Hi brad, thank you for commenting, I see you disagree with me and suggest the pressure switch is mandatory. However you say to use it at the transfer case which seems counter-productive since the switch must be before the solenoid (like factory nissan) to function, otherwise its the same as me and leaving the pump running, correct? thanks for the input

Edited by Full-Race Geoff
Risking Grand Master

Risking

Posted
Posted

No I install an adjustable pressure switch in the high pressure line as close as possible to the actuator on the transfer case. This switch is used to cut the pump motor relay.

I should have also mentioned moving the solenoid to the same location. I use a goyen hydralic line solenoid.

The pump this way keeps the entire line under pressure and reduces the "lag" time of pressurizing the actuator feed hose.

The idea of using the switch at the actuator

Full-Race Geoff Rising Star

Full-Race Geoff

Posted
Posted

very interesting idea to move the solenoid and the switch to the back of the xfer case. Reduced fluid volume makes sense, i will have to try this! do you have a particular part # for the goyen hydraulic line solenoid? thanks brad

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