moconnor

iTrader: (14)

I received 5-pin the harness (PN #49C-A004) and it contains a connector and wires only for the Apexi map sensor (red, black, green) so the Apexi solenoid is definitely controlled through the stock factory harness on an FD. Presumably there is also a version of the 5-pin harness that also has a connector for the solenoid?

Will be a while before I can test this, however, because I have several other projects ongoing.

arghx

iTrader: (3)

post a pic of the new harness. Does it have 5 pins and only 3 wires coming from it?

There has got to be a harness that is designed for another car that will at least plug in

moconnor

iTrader: (14)

Yup. I'll try to get pictures this weekend.

I would guess that there is a version of this that has connectors for both a boost sensor and a solenoid.

moconnor

iTrader: (14)

Here is a (blurry) picture of the PFC end of the connector:



And a picture of the sensor end connected to the Apexi/Denso sensor:

arghx

iTrader: (3)

well damn.

moconnor

iTrader: (14)

What were you hoping for - an additional solenoid connection with connector?

Surely a harness of this type mist exist - the 5 pins would not be needed otherwise?

It's possible that even though the FD uses the factory harness to drive the solenoid that it also drives the two pins on the boost contoller connector.

arghx

iTrader: (3)

I'm betting there has to be a 5 pin harness with 5 wires and two connectors, one for the MAP sensor and one for a boost control solenoid--just because the PFC is available for many cars. My DL software came with a basemap for a B16 honda engine. It has an option for the boost control kit under settings 1, and you know that thing doesn't come with a factory boost control solenoid.

Dudemaaanownsanrx7

iTrader: (23)

I imagine the other 2 pins do control the solenoid also, but for ease of wiring they just utilize the one built into the FD harness.

For someone that already has the 3 wire 5 pin harness it would be really easy to test out. simply hook up a multimeter to the 2 remaining pins and go for a drive. If it's controlling those pins it should cycle voltage. Probably 5 volts.

Or Arghx I bet you could figure out a way to get some wires on those pins to test yourself. One trick I have used in the past is to cut a length of wire, but not strip it back then push it onto the pin to make a connection. The pressure from the insulation helps hold it onto the pin. Sometimes pushing a small nail into the wire first helps create a path to prevent the pins from bending. I don't know if you would need the map sensor wires hooked up as well in order for it to work.. but it's worth a try without first. The remaining wires shouldn't matter how they are hooked up to a solenoid it will work either way.

arghx

iTrader: (3)

it is probably a molex plug like one of these:

http://www.molex.com/molex/products/listview.jsp?query=&offset=20&npp=20&sType=a&fs=&c hannel=Products&Lang=en-US&autoNav=&path=cHome%23%23-1%23%23-1~~cCRIMPHOUSINGS%23%230%23%232vc~~nf13||35&Itemli st=

or one of these (near bottom)

http://www.action-electronics.com/mo...olex+HU+series

you'd just have to figure out what size pin it needs and insert it, crimping the wire to the pin with a tool like this:



http://www.bmotorsports.com/shop/pro...roducts_id/362

moconnor

iTrader: (14)

It is a Molex connector of some sort (it has the marking MXJ) but does not look exactly like any on the ones linked to. I'll post more detailed pictures tomorrow.

However, if you look at the third picture in post #18 that you made in this thread it clearly shows a 5-pin connector with boost control and solenoid connectors. You should order that connector - if you can find it through the image.

moconnor

iTrader: (14)

Some pictures:

zachg88vert

iTrader: (7)

alright i just jumped in and read this post i actualy jsut bought a fd so im new to this, and im going to be geting a pfc for it. i have a gizzmo ebc brand new in the box. it loks like from what ive read you can just use the solenoid fro mthe ebc and hard wire (soder) it to the wires from the fd harness. this would act as the harness you get from apexi and wire the map sensor in the same way. or you can simple run your own wires. why pay for a harness if your good at electrical work just do it yourself. i mean im going out on a limb here but wouldnt it do the same job, and if you are able to find the plug to go into the ecu it would be better. or you can pin each wire individualy you just need the diagram to do so. dont flam im new to this thats just my input please correct me if im wrong.

moconnor

iTrader: (14)

I read half of your post and then I got a headache. Have you tried reading your own posts?

That said, what you suggest may work but it is not clear how a good a boost controller the PFC is even with the additional control kit. Other kits are proven.

zachg88vert

iTrader: (7)

sorry i had a long day at work and scrambled around typing doing a million things at once

arghx

iTrader: (3)

I am trying a different route guys. I am going to try and control boost using a factory FD wastegate solenoid. There is a decent chance it will work, as it is the same basic design as the FD boost control solenoid in "NC--Normally Closed" configuration. I have discussed the control logic of the Power FC's boost control system (basically an AVC-R) here: https://www.rx7club.com/power-fc-forum-47/pfc-wasgate-precontrol-710953/ Instead of having it hooked up as a vent solenoid after an internal wastegate actuator (like stock on the FD), it will be hooked up in-line to the top port of a Tial 44mm wastegate. Since I have an FC, I am going to insert an OEM connector pin into my adapter harness pin slot 4U.

Now can anybody get me an FD wastegate/precontrol assembly? Or can anyone tell me if you think this connector:

will work to plug into the wastegate solenoid and/or Apex'i solenoid? it is found here: http://www.bmotorsports.com/shop/pro...roducts_id/946

and maybe this is the plug for the Apex'i pressure sensor?


http://www.bmotorsports.com/shop/pro...oducts_id/1096

moconnor

iTrader: (14)

You can probably find one of these cheaply in the classifieds. However, looking at mine it appears that this connector is similar but not the same at the FD one. The pins look to be in the wrong position and the top notch should extend the length of the widest portion of the connector as the side ones do.

This looks like it may fit. Perhaps Banzai may help here since they manufacture a harness that adapts to the GM sensor.

Unfortunately, neither the stock precontrol/wastegate pigtails nor the Apexi boost control kit connectors have any manufacturer markings on them that I can find.

arghx

iTrader: (3)

I managed to get the wastegate solenoid and connectors from someone who has gone non sequential. Again, this is just an experiment. I may switch to the Apex'i solenoid or just get a profec if it doesn't work.

arghx

iTrader: (3)

I figured out how to control boost with the PFC without buying the kit:

https://www.rx7club.com/3rd-generation-specific-1993-2002-16/free-power-fc-single-turbo-probably-nonsequential-boost-control-846883/

arghx

iTrader: (3)

just for anyone skimming through this who doesn't want to go through that whole thread ^

I am currently running a solid 15psi by using home depot parts to adapt the factory wastegate solenoid for external wastegate use. You do need to change a couple settings in your map with a Datalogit for it to work.