EBPV operation

[MNTAIR]

Hi Guys,
I just completed the EBPV mod. and am a bit skepticle about it's operation. I cut the grey/red wire that comes from the PCM (I intend for it to be controlled manually only) and connected it to a wire which leads to a button on my shift lever (5spd). When I depress the button it provides 12v to the valve. When I first started it, I toggled it on and off several times, and it did seem to be working (I could hear that familiar whooshing from the exhaust which happened when button was depressed).... however, after it warmed up I could no longer percieve any difference. I drove it and tried to see if there was any effect comming down a long grade (2500rpm, 55mph) It did not seem to be doing anything at all. I had my son operate the button while I observed the valve operation and saw that the actuator is closing the butterfly maybe 45 degrees at best. Is this normal "full stroke" for the butterfly or should it be closer to 90 degrees?
Any help would sure be appreciated.
Thanks guys!

[z250kid]

i have an auto i did it was fun for like first month.
if you just splice a wire in and you check your truck for codes, it will throw one saying about the ebv.
took it off and not there anymore

[Ryan Rønning]

Maybe its just because I have a strait piped truck but I can really hear it when it kicks in on mine!

[MNTAIR]

Does your butterfly valve close more than 45degrees?

[Ryan Rønning]

I have never thought to watch it. I will have to check.

[MNTAIR]

I'm suspicious of mine...that maybe it isn't closing as far as it is supposed to. Do you know if the tube that comes from the EBPV sensor is also the source of hydraulic pressure to operate the valve? (is it operated hydraulicaly? )