I have a 90 accord EX with a f22a1 engine, but I just put on a 94 v-tec head and finally got it all running, but now It hessitates at 5200, and wont go past. almost like a rev limiter. At first this happened at about 3000, but we dicked around with the afc settings and we improved it dramatically.
I read on the apexi site in the Q and A

"VAFC: Will the VAFC work on 4 cyl. Accords?


No. The VAFC will not work correctly on 4 cyl. Accord models. 4 cylinder Accords incorporate a slightly different method of VTEC control causing the engine to hesitate at approx. 5000 RPM when the VTEC engagement point is changed. The VTEC AFC will work correctly on 6 cyl. Accords."

Does this mean that I cant use the VAFC2 on my car? this only talks about the vafc 1.
If anyone has any presets that I could put in that would be great, Im taking to be dynoed on friday, but want to try to get it to run good myself by then.
Aloha,

Chani Smith
90 Accord EX
f22b1 v-tec head shaved 15thousands, 3 angle valve job
port and polished intake manifold
220 prelude injectors
NOS dry nitrous system
Megan cam gear
AEM fuel rail
NGK spark plug wires
AEM CAI
Greddy Exhaust
4-2-1 dc style headers
v-afc2 vtec controller

 

what ecu are you running?

 

I am currently running the 90 ECU. The 95 ecu that I have makes it idle wierd and barely run. It is also has a few extra sensors so if I run it will stay in open loop. The owner of the only shop on maui with a dyno claimed to me that I needed the vtec controller and ther 90 ecu for it to run right. I hope I dont have to stick his foot in is mouth again....wont be the first time, hehe.

Aloha,
Chani Smith