SilverLude

Ok, I installed my VAFC on my 97 Prelude....i only have intake and exhaust......when i first installed it the engine check light came on, so, i put all the setting to default, and also disconnected the neg. battery and it took of the engien light.........but heres the problem. When i get to 6500 RPM, i get Fuel Cut, andI cant get by this...All my connections are correct also...and heres the weird thing, i went to uninstall my whole VAFC, and put everything back...and is does the exact same thing!!...Anyhelp? fuek cut at 6500...its suppose to be 7600....

Evil Lude

Sounds like whatever the code that was triggered enabled the factory ECU to go into "Limp Mode". It will kill your power until it's disabled. The engine thinks something is way out of whack, and cuts power until you can have the engine serviced. Why it didn't reset/go off when you disconnected the battery, I don't know. I had a VAFC on my '96, and all it did was throw codes & cut off at 6500. Same unit works fine a friends 2000 Si. I think my trouble was related to the VTM signal. There's a few different ways you might research in how to wire it in.

SilverLude

so do you know any special ways to resest this, ive already disconnected battery fro +15 minutes, and crap, and even pulled the ratio/clock fuze for awhile, but the fuel cut at 6500, still there......

RAB

Sounds like the infamous VMT signal problem that Apex-i has tried to fix. I've done some research on the VAFC, I'm think aboout getting one. I still don't know much about it but have found some good link that address the problem you're having.

http://members.aol.com/ryoucold/prelude/apexi/apexi.htm

more on the install aspect.
http://www.ntpog.org/mods/fifth-afc/afc.shtml

Good luck. and from what I've heard you can install it yourself but after the install go get it professional dyno tuned.
What Evil Lude said is exactly what a lot of people have been experiencing.



[Modified by ryvtec, 5:58 AM 6/28/2002]