Rep Power: 0

I know there's a ton of post about VAFC2 troubleshooting, I checked them out but the CEL still comes on:

I connected the VTM according to CarbonFly vafc complete fix
http://www.7thgencivic.com/forums/sh...hreadid=132810

I also tried setting my H-L and L-H to within 200 of its cutoff
http://www.7thgencivic.com/forums/sh...hreadid=128671

And I used these settings: L>>>H--4500H>>>L4200 I also tried L>>>H 5200 L>>>H 5000 but the CEL still on!
http://www.7thgencivic.com/forums/sh...ighlight=vafc2

What could be the problem? I couldn't pass over 4000 rpm! and CEL is on! I think the settings are wrong, Please help! thanks!

 
Rep Power: 812

First off, make sure all the wires are connected properly (a couple aren't used).

I would just leave the vtec points stock. Anything else will lose hp.

Lastly, did you perform the initial setup BEFORE starting the car for the first time? I'm guessing you didn't, and there's your problem. Go unplug the battery and start over, this time reading the manual.

oh and btw, vtec=3 for our cars.

 
Rep Power: 0

damn it! that could be it! I did the initial set up but! I put set the vtec 1 :P thanks bro! I'm gonna try again tomorrow!

 
Rep Power: 812

To change it to three, you can just turn the car to on (don't start it) and set the value. Then turn the car back off. After that, it should be saved and you can start it up. No need to disconnect the battery.

 
Rep Power: 413

My vtec is set at 1, and I don't have a CEL problem. But I did go through the rest of the setup also before I started up my car.

 
Rep Power: 0

On my V/T cont: I'm using Lo>>>Hi---4500 and Hi>>>Lo---4200

What you guys got on your settings?

 
Rep Power: 0

I have mine set to passive aka stock, since this was the best setting the dyno tuners found for the most HP gains/pull for my setup anyways. All I remember was that changing it more than stock lots of torque was lost and below stock engine was somewhat unstable. Be sure to get it dyno tuned for the best gains, since they'll know what your a/f ratios should be at each point.

 
Rep Power: 0

Yeah I'll get it dynoed either today or tomorrow if I can get past 4000rpm, I got everything set right but the CEL is on and I can't get past 4000rpm, I'll put mine on stock also lets see if that one works, that should look like **** right? okay! I'll triple check...

but did you guys put a diode?on the pink and purple wire? the diagram on the manual didn't mention anything but based on the DIY on this site:
http://www.7thgencivic.com/modules.p...howpage&pid=58
On DIY #1 says two DIODES
On DIY #2 says only one DIODE
I followed DIY#1 putting two diodes in pink and purple wire

What is it really? the diagram on the manual didn't mention anything about a diode, did you guys put a diode? if so, which wire? can you tell me all the details please! thanks!

 
Rep Power: 0

Diodes? If you have the VAFC2, there is no need for diodes, diodes were needed for og VAFC and not the VAFC2. Those diodes may be causing your cel. You just need to follow the VAFC2 instructions it came with and connect the VTM wire and you should be good to go. Again, no diodes. Good luck...

 
Rep Power: 323

there is no diode used on the vafc2 it works fine without any need to do anything special but hook up the vtm wire. the one that needs to be fixed is the original vafc.
Did you solder all connections? I hope so. double check all connections and do the initial set up again. make sure you read the instructions while you do it so it is right. Leave the vtec engagement on passive also. this has been proven time and time again to be the best setting.

 
Rep Power: 0

wooooooooohoooooooooooooo got it workin! it was that damn DIODE!!! thanks you guys! appreciate it much!
\
check it out!
http://www.7thgencivic.com/forums/sh...hreadid=149874

 
Rep Power: 0

I also found out that the car is unstable if you change stock vtec settings.

Someone needs to do a DIY and tell all to leave it in passive mode. I dyno'd mine and it was all over the place when I took it out of passive mode. Also if iset the vtec mode to 3, I get check engine light. My car is set to 1. Anyone else experience this?

Good luck all.

 
Rep Power: 0

I got my vtec set on 3, and my vtec set to Hi>>>Lo 3400 and Lo>>>Hi 3000 but the vtec kicks in on 5200rpm? anyway its kinda kool having that kicking in on that level!

 
Rep Power: 0

Whats the initial setup I did not do that and my cell is not on..This guy said the setup is over for i-vtec or sumthing