DIY: Apexi VAFC Install #1
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DIY: Apexi VAFC Install #1
I finally got some time go get this done so everyone put aside about 30mins to an hour for this k. I didnt get any pics cause my camera sux, but when you take out the glove box the ecu is directly behind it. Im going to start from the top plug down, there are three plugs that go into the ecu and its best to work with the top down first k. YOU MUST AND I CANNOT STRESS THIS ENOUGH!!! YOU MUST SOLDER EVERYTHING!!!! NO CRIMPING AND NO WIRE TAPS!!!
Things needed:
VAFC
Solder
Soldering gun
Electric tape
2=2amp diodes
Step 1.
Remove the glove box and locate ecu.
Locate the top plug and remove it from the ecu.
Step 2.
Find the green wire that is on the vafc. You want to solder the green wire into the blue wire with gray dots on it. When done use tape and plug the harness back in.
Step 3.a)
Locate the 2nd plug, should be in the middle. Find the purple and pink wires from the vafc, now locate the green with yellow strip on it. You want to cut this wire in half, (Cut far from the ecu to give yourself some room) Now get one diode and shorten the legs a bit where about 1 inch is left on it.
Step 3.b)
Take the diode with the gray end and solder that to the wire that you just cut that is going towards the car away from ecu. (DONT LEAVE THE SOLDER ON DIODE TOO LONG BECAUSE IT WILL MELT THE DIODE) When done tape up the wire and diode.
Step 3.c)
Take the purple wire and solder this to the other end of the diode that has nothing on it. (Be sure again not to leave the soldering gun on it too long) Now tape up the diode and the purple wire.
Step 3.d)
Take the other diode with the gray mark pointing towards the ecu and solder that end to the wire that is coming from the ecu that you just cut. After that take the pink wire and solder that to the other end of the diode. When done tape up the diode and the wires making sure nothing is exposed.
Step 4.
Now locate the blue wire on the vafc, and locate the blue wire with a black strip on it harness of the ecu. Cut this wire in half and solder the vafc blue wire to the ecu. Leave the other end unused. Use tape to tape up the wires. And when done plug the harness back in.
These last steps are gonna be difficult because the wires are kinda hard to get to.
Step 5.
Locate the 3rd plug which is at the very bottom. Find the gray wire from the vafc, now locate the red wire with a black strip on the ecu harness. You want to solder the gray wire onto the red with black stirp. Use tape to tape up the work.
Step 6.
Locate the yellow and white wires on the vafc, now locate the white with a green strip coming from ecu harness. Cut that wire in half leaving yourself some room to work with the wires. Now solder the yellow wire to the end that goes towards the ecu. The white wire goes towards the car. Solder both wires and use tape to cover up work.
Step 7. This one is kinda tricky so BE CAREFUL!
There are going to be two wires on the harness a black with 2 gray dots and a solid black wire. You want to find the black solid wire. After that get the brown and black wires that are coming from the vafc, and solder these two wires onto the black wire coming from the ecu. Make sure that the brown wire is closer to the ecu than the black wire. I put my brown right in front of the black. Solder them onto the black solid wire. DO NOT TWIST THESE TWO TOGETHER!!!! After that use tape and tape up your work.
Step 8.
Locate the red and orange wires from the vafc. Now find the yellow with a black strip and gray dots on it. You want to solder the orange wire closer to the ecu than the red wire. DO NOT TWIST THESE TOGETHER!!! When done soldering cover up with tape.
And finally plug in the last harness to the ecu. Check all connections to make sure that everything is soldered on tightly and neatly. That should cover all the wires and everything that needs to be done. That is the best that i can tell everyone to do. YOU NEED TO SOLDER EVERYTHING YOU CANNNOOOOTT CRIMP OR TAP. Because if you do a good signal will not go through. Hope this makes you people happy and that it works on everyones car. I myself did not do this work but instead my friend whom owns a shop named NBKHUSTOMZ in arlington texas did all the work his name is Tony. And Redline performance dynotuned my car for me.
On another note i got my car dynotuned and it added 7hp. All i had was just an injen cai, It went from 112 to 119.
Things needed:
VAFC
Solder
Soldering gun
Electric tape
2=2amp diodes
Step 1.
Remove the glove box and locate ecu.
Locate the top plug and remove it from the ecu.
Step 2.
Find the green wire that is on the vafc. You want to solder the green wire into the blue wire with gray dots on it. When done use tape and plug the harness back in.
Step 3.a)
Locate the 2nd plug, should be in the middle. Find the purple and pink wires from the vafc, now locate the green with yellow strip on it. You want to cut this wire in half, (Cut far from the ecu to give yourself some room) Now get one diode and shorten the legs a bit where about 1 inch is left on it.
Step 3.b)
Take the diode with the gray end and solder that to the wire that you just cut that is going towards the car away from ecu. (DONT LEAVE THE SOLDER ON DIODE TOO LONG BECAUSE IT WILL MELT THE DIODE) When done tape up the wire and diode.
Step 3.c)
Take the purple wire and solder this to the other end of the diode that has nothing on it. (Be sure again not to leave the soldering gun on it too long) Now tape up the diode and the purple wire.
Step 3.d)
Take the other diode with the gray mark pointing towards the ecu and solder that end to the wire that is coming from the ecu that you just cut. After that take the pink wire and solder that to the other end of the diode. When done tape up the diode and the wires making sure nothing is exposed.
Step 4.
Now locate the blue wire on the vafc, and locate the blue wire with a black strip on it harness of the ecu. Cut this wire in half and solder the vafc blue wire to the ecu. Leave the other end unused. Use tape to tape up the wires. And when done plug the harness back in.
These last steps are gonna be difficult because the wires are kinda hard to get to.
Step 5.
Locate the 3rd plug which is at the very bottom. Find the gray wire from the vafc, now locate the red wire with a black strip on the ecu harness. You want to solder the gray wire onto the red with black stirp. Use tape to tape up the work.
Step 6.
Locate the yellow and white wires on the vafc, now locate the white with a green strip coming from ecu harness. Cut that wire in half leaving yourself some room to work with the wires. Now solder the yellow wire to the end that goes towards the ecu. The white wire goes towards the car. Solder both wires and use tape to cover up work.
Step 7. This one is kinda tricky so BE CAREFUL!
There are going to be two wires on the harness a black with 2 gray dots and a solid black wire. You want to find the black solid wire. After that get the brown and black wires that are coming from the vafc, and solder these two wires onto the black wire coming from the ecu. Make sure that the brown wire is closer to the ecu than the black wire. I put my brown right in front of the black. Solder them onto the black solid wire. DO NOT TWIST THESE TWO TOGETHER!!!! After that use tape and tape up your work.
Step 8.
Locate the red and orange wires from the vafc. Now find the yellow with a black strip and gray dots on it. You want to solder the orange wire closer to the ecu than the red wire. DO NOT TWIST THESE TOGETHER!!! When done soldering cover up with tape.
And finally plug in the last harness to the ecu. Check all connections to make sure that everything is soldered on tightly and neatly. That should cover all the wires and everything that needs to be done. That is the best that i can tell everyone to do. YOU NEED TO SOLDER EVERYTHING YOU CANNNOOOOTT CRIMP OR TAP. Because if you do a good signal will not go through. Hope this makes you people happy and that it works on everyones car. I myself did not do this work but instead my friend whom owns a shop named NBKHUSTOMZ in arlington texas did all the work his name is Tony. And Redline performance dynotuned my car for me.
On another note i got my car dynotuned and it added 7hp. All i had was just an injen cai, It went from 112 to 119.
Last edited by CarbonFly; Apr 20, 2003 at 05:36 PM.
Thread Starter
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From: grand prairie, Texas, US
Rep Power: 0 So when someone has this done please leave a post and tell me how everything went. So far we have this done on my car, BIGLIMPDAWG's car and hwoody77's car. And no engine light yet so just let me know when someone else has done it k.
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Originally posted by Wanger
you know my way works too and it's 50% easier.
you know my way works too and it's 50% easier.
Make a better quality description with all of the problems worked out and maybe I'll sticky it too.
But for now this post is very helpful, very descriptive, and this guy was the first to get it right. Remember when everyone flamed him for getting all of the problems worked out in his VAFC, but he didn't post how because his shop did it?
Tell me what you don't like about yourself....
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From: Columbia, SC, USA
Rep Power: 413 THanks for updating the other thread. You are now stickified.
But now I'm confused as to weather I should crimp or solder......LOL
But now I'm confused as to weather I should crimp or solder......LOL
Originally posted by FlyRiceRacer02
THanks for updating the other thread. You are now stickified.
But now I'm confused as to weather I should crimp or solder......LOL
THanks for updating the other thread. You are now stickified.
But now I'm confused as to weather I should crimp or solder......LOL
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Joined: Dec 2002
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From: Canovanas, Puerto Rico, US
Rep Power: 0 Originally posted by CIVIC808
what do you mean invert the pink and purple wire?i followed instructions on the diagram.
what do you mean invert the pink and purple wire?i followed instructions on the diagram.
The VAFC manual and ME says that the pink wire connects to the green/yellow who connects to the car VTEC Solenoid Signal directly
and the purple connects to the green/yellow that connects to the ECU
I think that he mistake when explained it
Last edited by triryche; Apr 22, 2003 at 10:44 AM.
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