Pfc Boost Control Kit Wiring

[jmac]

Hey all,

Yes, I've searched and found this:

http://www.skylinesaustralia.com/forums/in...18&hl=BCK*&st=0

and this

http://www.skylinesaustralia.com/forums/in...=8&t=92133&st=0

But I'm not sure if I've done it right. I'm ok with the plumbing side, but it's the wiring I'm not sure of.

Included below is a dodgy diagram of how it's wired up now. Also some excerpts from the BCK manual that came with the kit (in Japanese) and an old manual for the AVCR from the US Apexi site.

Car: R34 GT-T (RB25DET NEO)

BCK model no.: 415-A013

Both the PFC and BCK are only a month or two old.

Again I had the problem of having nowhere for the two-pin spade-type connector coming from the solenoid to go.

Has this been done this right? Or totally wrong? The car is running ok but doesn't seem to be holding consistent boost (set to 1.0kg/cm2, duty cycle 64). Please help. Thanks.

[jmac]

Anyone???

[paulr33]

This guide should tell you all you need to know about the boost kit and how it connects up. Please have a read and let us know what actual problem you are having with it, as its most likely already covered in the FAQ

http://members.dodo.com.au/paul/docs/power...powerfc-faq.htm

[paulr33]

your wiring harness that goes into the powerfc should have 5 wires and not 3. If you have the 3 pin plug and 3 wire plug that runs into the powerfc on the side (next to hand controller port) then you have the wrong boost kit. The ER34 uses the 5 pin boost kit

[jmac]

I have part no 415-A013... which suits the ER34... which has 3 wires coming from the MAP sensor and 2 spare pins on the plug which goes into the PFC.

I printed out that FAQ and took it to the workshop with me at the time of the install and it isn't entirely revealing...

The pressure sensor has the main wiring harness directly attached to itself, one end plugs into the 5 pin port on the PowerFC. The solenoid piggybacks off the Pressure Sensor wiring harness which leads to the PowerFC connector port. The wiring is shown below.

MAP Sensor

Red = Positive

Black = Negative (earth)

Green = Signal

Solenoid

Pink = Positive

Black = Negative

When the solenoid wiring meets with the Map Sensor harness the colours for the Soneoid change as follows;

Pink = Red

Black = Brown

I guess what I don't get is HOW the solenoid wiring is supposed to meet the MAP sensor harness, when the plug that comes on the end of the solenoid wiring doesn't directly plug into anything in an ER34 engine bay.

Now I'm confused...

[jmac]

Anyway we did a workaround tonight (see attached).

Not what it says in the FAQ (kinda) but now seems to be working... shame about the whole raining thing and therefore no traction in 1st, 2nd, 3rd or 4th....

[Sydneykid]

Anyway we did a workaround tonight (see attached). 

Not what it says in the FAQ (kinda) but now seems to be working... shame about the whole raining thing and therefore no traction in 1st, 2nd, 3rd or 4th.... 

<{POST_SNAPBACK}>

That is correct, the BKC solenoid connects to the standard wiring harness in place of the standard boost control solenoid.

cheers

[paulr33]

The r33 boost kit connects the pfc boost solenoid to the standard boost control solenoid wires in the engine bay.

I was unaware the r34 had the same or a similar boost solneoid by factory.

Usually if the boost kit has 5 pin with 5 wires then the boost solenoid and map sensor run to the ecu via that single plug into the boost controller kit port and the powerfc turns the solenoid on/off via the 5 pin plug.

I find it odd that you have the 5 pin plug and wires and the solenoid runs to the standard factory wires in the engine bay. so there are 2 wires on the loom unused then ?

The guide was updated about a week ago to reflect the new stuff i had found on the boost control kit after i tried with NateR31 to get his working on his r33 and the printout you've got was the original stuff I had which was a bit brief and didnt explain a great deal

[jmac]

That's correct, 2 unused pins on the MAP sensor harness on the plug that goes into the PFC unit.

[r33_racer]

Map sensor goes into the powerfc via a plug.

solenoid gets plugged/wired upto the factory solenoid plug/wires once oem unit is removed.

Its alot simpler then it looks.

[jmac]

damn straight