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.