hmm... what about those contorls that are dials that you can turn from 2k to 8k activate?? looks sketch

 

They suck dont mess with them

 

It is activated by the throttle pressure as you hit the engaging rpm......I do not know how definitive vtec sounds in your car, but in my h22, you can hear it engaging, but, if I go past 4900 (when vtec engages app.) without very much throttle pressure VTEC will not engage....


http://www.honda-tech.com/zerothread?id=387574

And if you do not like that, then come over and try it in my car!

 

ya, if i cross 4700 (when i have my vtec set to engage) at anything under 30% throttle it won't engage either. i gotta be at full throttle. i have a vafc.

 

THANK YOU!!!!!! Finally someone who agrees with me

 

then again, maybe there is summin slightly different from those b series motors? cuse we both have a obd1 h22 correct?

 

v-tec is engaged buy map sensor/throttle pos. if you put in a swith you will get a check engine light. you need a controller.
Feilds have alot of problems i would use a v-afc

 

yup, obd1...that thread from hondatech i posted was for all vtec tho i believe....like vtec in general

 

and the dudes on the thread who were talking about that were mostly type R owners...so i dont know

 

If you put in a switch, you shouldn't get a CEL, but it should run like ass. VTEC engagement switches to a different (second) set of maps for fuel, etc., and if you use a switch, you'll still be running on the non-vtec maps, parameters, etc., so you'll probably go quite lean quite fast. You can tell the VTEC solenoid to engage with a switch, it doesn't care, but who knows what the ECU will do to try to compensate. All that intake air may make some funny corrections from the ECU..
The MAP sensor doesn't factor into the decision to engage VTEC or not, only RPM, throttle position, and oil pressure; the ECU just uses the MAP sensor like normal.. A vtec controller is just an RPM activated switch with fuel/spark maps built in to correct when vtec is engaged, the ECU doesn't care. This is why a non-vtec ECU can be used with a vtec controller (on a vtec engine), and the ECU doesn't care. It doesn't know you're engaging vtec when you're not supposed to, because it doesn't know what vtec is..