kenne bell Boost pump possible issues

[bubbafett]

Hi guys I installed a kenne bell boost a pump, and im having issues. I went by their instructions (not Dinans with two extra relays), I'm not getting the 17 volts I should. When I do power on test my volts start at 0 and climb slowly to about 10.5 volts (on the Vi/g fuel pump line the pump is wired into). I called keen bell and basically if you dont drive a Ford they have no idea what the hell is going on.

I understand you can wire in backwards, but since the battery is in the trunk, and I tapped in just before the fuel pump relay not sure how that would work. I am testing good battery power on the line feeding the pump and the wire out the pump. Also the fuel pump relay is "clicking" twice, not sure if that is correct. Also tested by Bumping the fuel pump fuse in the fuse box form 15A to 30A not much difference.

Any advice would be great. I may wire in reverse of what I currently have and see what happens. Also I'm using the hobbs switch and have 10 psi of vacuum applied to the vacuum line.

[someguy2800]

They are not the most reliable thing on the planet so I wouldn't be surprised if its just a bad unit.

[flexer]

I have installed many of them. Never a problem. Honestly it sounds like a wiring deal to me. you give the thing ground and a 12v switched input that used to go to your fuel pump. You then wire the output to the pump. It then has two other wires that trigger the pump to go into high voltage mode. Not to much to it. Double check your wiring.

[bubbafett]

I have installed many of them. Never a problem. Honestly it sounds like a wiring deal to me. you give the thing ground and a 12v switched input that used to go to your fuel pump. You then wire the output to the pump. It then has two other wires that trigger the pump to go into high voltage mode. Not to much to it. Double check your wiring.

Where did you wire into your fuel pump line at?


Just an update: This issue has been found 100% it turns out to be the Kenne Bell boost a pump. You cannot wire it the way Dinan describes in the supercharger installation manual. But in their defense the manual did not come with the wiring diagram. I tried wiring it two different ways; and thanks to forum member pbonsalb who helped me with the wiring, to know it was incorrect. And a shout out to forum member 328 Power 04 328 who offered to remotely program my DME if need be. I appreciate the community here when the chips are down and you just want to beat your head against the wall.

I have to admit it sounds damn good. -- It's just good to know I have the ability to follow a guide, and the skill-set to do it (some 300 steps, change the clutch, and align the DME all in my garage. But alas, I still make nube mistakes. lol lol