I have been working with
@Bidja and
@trev zd30 to make sure the box would install properly on their CRD.
In preparation for Magic box install for CRD, some comments are provided for info and also could be relevant for DI.
VNT vac solenoid (Boost Control Valve) _As Phil discussed, "Magic box" requires a dedicated VNT vac solenoid for the control/operation of the VNT vanes. For CRD a 2nd solenoid (stock) is to be electrically connected back to ECM(ECU) to avoid a P0045 code to occur (solenoid open circuit) and result is limp type condition, or can use a dummy load (330ohm/1watt resistor) across the connector +/-ve poles(if no 2nd solenoid connected).
The resistor fix was originated by a fellow on ZD Warrior (Mat) and was posted by
@skegbudley CRD boost controller removal and disable swirl valve mod
There was very little info of success with resistor mod to CRD MAF connector, so I trialed it for myself and works fine _ no codes and eng ran well. Spoke with the originator _ Mal on ZD warriors and he has had the 330 ohm resistor connected now for 2yrs and done 60,000ks with no problems.
It is worth considering retaining the ability to revert back to your current boost control arrangement, just in case of a Magic box defect or you wish to compare performance of different boost control methods. I will carry my manual boost control valves in the vehicle with hoses attached ready for easy install and yes
need to turn off 12v IGN power to Magic box(has 12v IGN pwr inline fuse).
In my case I will have two vac solenoids installed _ dedicated one for Magic box (same as stock in my case) plus the OEM stock solenoid_I run a boost limiter valve arrangement with VNT Vac solenoid/ECU. When using Magic box, you need to block off any boost line to manual valves and all vac solenoid ports not in use but remains electrically connected (especially CRD)
Stock solenoid is: Patrol ZD30 boost solenoid (Nissan 14956 AD20A) DENSO139700-0441). Same both for DI/CRD
Best try and get your hands on a second hand solenoid but hard to find ($s vary considerable). Maybe lucky <$50 and seen up to $150)
Best new price that I have seen to date (local supplier)_$210+post:
GENUINE ISSAN PATROL GU Y61 ZD30 BOOST CONTROL VALVE 14956AD20A
Stock solenoid connectors are another issue again (may get a second hand one_think I am lucky), I have looked around for new connectors and have identified one that should arrive in post today Local $6.35 + $7.60 post. Will let you know outcome:
Mazda FD RX7 Idle Air Control Valve Connector IAC | eBay
@Phdv61 is using Pierburg N75 solenoid and Phil may comment further.
@trev zd30 researched and identified the CRD ECM (ecu) pin numbers / wire colours for the sensors that are the required inputs for "Magic box" function.
@Phdv61 may be a good time to provide some general info "Magic box" sensor inputs, associated pin # /colours for both DI and CRD.
Hope info helps.