This is a how to install an Apex-i AVC-R from start to finish. I have done many installs of many electronics on many japanese supercars and this was by far one of the hardest so make sure to set aside at least 3-4 hours to complete install.

Items needed goes as follows: 3 feet of Vacuum Hosing that is stock size(I believe it is 5/16 but don't quote me on that), Wire crimpers/stripers, utility knife, socket set, phillips screw driver, wire taps or soldering tool, electrical tape, Rubber hose caps(size of vacuum hosing) mechanics gloves(trust me on this one).

I suggest reading the whole installation book from back to front before attempting this install. http://www.apexi-usa.com/documentation.asp If you are not familiar with these type of installs I highly recommend having a shop do it for you. I am no way responsible for any damage to your vehicle due to this install, this is just how I did it, so this is at your own risk!

Okay, step one: First detach your positive terminal from your battery. Now remove your stock intake box. You will need a 10mm socket for this. When you pull up the box be careful, there is a wire attached to it you will need to remove. Next remove the intercooler piping and the BOV that is attached to it completely. You can use a screw driver or 10mm socket for this. Next you will need to remove the plastic hose that attaches to the inlet of the turbo. This is very difficult, due to the fact that the screw is located under the inlet at the turbo, so I recommend using a 10mm socket with no extension, sliding it down and loosen it from below. Now you have removed everything necessary to begin the install.

Step 2, the Solenoid valve install: Okay now you will need to remove the hosing that connects to the turbo inlet, waste gate actuator, the stock solenoid (both hoses) and the hose attached to the plastic pipe that goes to the turbo inlet. All of these will need to be capped using the rubber hose caps except for the waste gate actuator. Here is a picture of the stock solenoid located beneath the intake box http://www.we-todd-did-racing.com/we...ZmQzMXk1NDE%3D You will now need to cut the hose that goes from the intake to the BOV. You will need to put a T in the middle of the hose. http://www.we-todd-did-racing.com/we...ZmQzMXk1NDE%3D
http://www.we-todd-did-racing.com/we...ZmQzMXk1NDE%3D
Now run a hose from the waste gate actuator to the COM side of the AVC-R solenoid valve. Then run a hose from the T in the BOV hose to the NO side of the solenoid valve. Now where you choose to mount this is up to you. Make sure the hosing is the proper length to go to where you want to mount it. I chose to mount it between the BOV and the engine block, away from heat and the elements. http://www.we-todd-did-racing.com/we...ZmQzMXk1NDE%3D
http://www.we-todd-did-racing.com/we...ZmQzMXk1NDE%3D

Step 3, the pressure sensor
Now, go ahead and reinstall all the stock components you removed. Be sure to make notes of what you disconnected and how so you are sure you reinstalled it correctly. After you have done this you need to locate the vacuum hose that goes from the fuel pressure regulator to the intake in the back passenger side of the engine bay http://www.we-todd-did-racing.com/we...ZmQzMXk1NDE%3D
http://www.we-todd-did-racing.com/we...ZmQzMXk1NDE%3D
You will need to place a T in the line and run a hose to the pressure sensor. Make sure to put the plastic air filter (white disk looking thing) in the line going to the pressure sensor. Make sure to mount it facing down. I chose to mount it on the back pressure hose for the A/C http://www.we-todd-did-racing.com/we...ZmQzMXk1NDE%3D
You are now done with the engine bay for the moment now time for the interior.

Step 4, the computer wiring.

The ecu it located behind the glove box, it is not hard to remove. I chose to buy a fields harness which is an ecu extension harness. I pre-wired all of my connections before putting it into the car. http://www.we-todd-did-racing.com/we...ZmQzMXk1NDE%3D Follow the wiring directions on which wires tap into what. The wiring diagram in the installation book for 98 and up is the correct wiring diagram for our car too so you can follow its directionshttp://www.apexi-usa.com/productdocumentation/electronics_savcr_wire.pdf

Step 5, running the connectors into the engine bay
This has to be the hardest part of the whole install. These connectors are big and you have to push them through a little hole in your firewall. I chose to use the hole that the ecu wires use to go into the engine bay. http://www.we-todd-did-racing.com/we...ZmQzMXk1NDE%3D
http://www.we-todd-did-racing.com/we...ZmQzMXk1NDE%3D Use the utility knife to cut a good size hole through the side of the rubber into the engine bay (be careful not to cut any ecu wires in the process). This is what the outside of the hole going into the engine bay looks like http://www.we-todd-did-racing.com/we...ZmQzMXk1NDE%3D
It’s the round rubber thing in the bottom right hand corner of the picture. Now push your connectors into the engine bay and connect the right ones to the solenoid valve and the pressure sensor http://www.we-todd-did-racing.com/we...ZmQzMXk1NDE%3D
http://www.we-todd-did-racing.com/we...ZmQzMXk1NDE%3D
I made sure to zip tie the wire going to the solenoid wire to the cross bar. Now tuck back all your ecu wires and put the ecu back in and now it's time to install the AVC-R unit. I ran the wire through the center console using a coat hanger and ran it up under the steering wheel column http://www.we-todd-did-racing.com/we...ZmQzMXk1NDE%3D
http://www.we-todd-did-racing.com/we...ZmQzMXk1NDE%3D
This is where I chose to mount mine, where you choose to mount it is up to you. Now you just need to check all your connections, hoses, and turn the key to start programming and your done.

If you have anything to add to this that I might have left out post it and if it's pertinent I will add it. Good luck

 

Thought I would respond a say nice job on the install pics and explanations! Well Done.

 

When you disconnect your battery it is better to take off the negative side rather than the positive side. The reason why is that if your wrench hits the body or motor you will make a giant short with sparks, etc. Might even hurt the electronics. If you hit something with the wrench on the negative side - no big deal since that is the ground side anyway.

 

Where did you get the extension harness and how much was it?

 

I got it from www.skunk2.com and it was around $160. I believe one of the vendors on this site has them available too.

 

Hey.. just wondering why you tapped a manifold pressure source instead of the turbo outlet nipple. Most of the directions suggest using the turbo nipple but since I have an MBC and would like the AVC-R someday, your instructions are a revelation to me. But I'd like to learn a bit and know your reasoning.

Thanks...

 

Anyone have a list of optimal settings for the avc-r?

Thanks

 

Links to pics are now dead...

 

can any one verify that step two how the Solenoid gets attached is correct? i beleve its wrong or doable a differnt way. please enlighten me b4 i go insanet thanks

dan.

 

this is not a very hard install.. not sure why your making it out to be impossible lol. Anyone with 4 hours on there hand can do this.

Also I have been running the BOV t-line method for quite some time with an mbc and have come to the realization that this is not the way to hook up your mbc. Gruppe-S has confirmed that this is defianetely incorrect for the avc-r

 

This post is an optimal how-to

 

This was close, but didn't give me everything I needed to know for a successful install. I added some more details in my write up.

https://www.evolutionm.net/forums/sh...ighlight=avc-r

 

i had my AVC-R solenoid re-hosed today because the previous owner had the AVC-R solenoid connected to stock solenoid then to actuator wastegate; means it was running on 2 solenoids (AVC-R and stock). So removed hose from AVC-R soleniod to stock and plug a loopback hose onto the stock solenoid based on RyanM's method.

now, after performing the above, i set AVC-R to OFF mode to see original boost and i was only getting 0.6kpa max; but previously with both AVC-R and stock solenoid connected, peak was 1.15kpa when AVC-R is set to OFF.

is this normal or i did something wrong? please advice.

 

anyone with the ecu extension harness. Id like to get some feedback on how they managed to squeeze all the wires up out of the way. I did a search already and couldnt find anything. thanks

 

Just sgueeze them in. THey will fit, but it just takes effort.