VOICE MAIL!!!!!
What does this custom switch do?? Help!
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Joined: Jul 2006
Posts: 37
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What does this custom switch do?? Help!
Okay... here is the low down. My buddy bought a switch off e-bay for his 99 7.3. Well it gave him good results so I tried to wire one on my 97 7.3. Can someone tell me exactly what this is doing??? I know nothing about electrical so I am in the dark. I know that with the switch in the on position the idle is slightly higher and my truck runs ten fold better. I drew a picture so show how it is wired. Not the best but hopefully someone can make heads or tails of it!
Thanks!!!
Edit... looks like I can not post attachments so I will describe the best I can.
Okay it starts with a four post 12v/30a relay. Of the four posts two of them connect together and form one ground wire.
One post goes directly to the blue/red wire of the fuel pressure switch.
One post goes to a toggle switch with a 4.7k resistor in it.
From there the other side of the toggle switch runs to a potentiometer.
The second side of the potentiometer runs down the the throttle pedal. It connects to the plug with 2 wires and hooks in to the wire with a 12v source.
Make sense??? Maybe???
Thanks again!!
Thanks!!!
Edit... looks like I can not post attachments so I will describe the best I can.
Okay it starts with a four post 12v/30a relay. Of the four posts two of them connect together and form one ground wire.
One post goes directly to the blue/red wire of the fuel pressure switch.
One post goes to a toggle switch with a 4.7k resistor in it.
From there the other side of the toggle switch runs to a potentiometer.
The second side of the potentiometer runs down the the throttle pedal. It connects to the plug with 2 wires and hooks in to the wire with a 12v source.
Make sense??? Maybe???
Thanks again!!
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 104
From: Ashland City, TN
Sounds like the standard resistor mod everyone does, but with a POT and a Relay in there as well.
It tricks the truck and creates more oil pressure, or fuel pressure. Can't remember which.
Forgot. =\
It tricks the truck and creates more oil pressure, or fuel pressure. Can't remember which.
Forgot. =\
Post Fiend
Joined: Apr 2004
Posts: 12,835
Likes: 3
From: Silver Lake Dunes, MI
That is a fancy 10K mod. Its tricks the computer to think the ICP (injection control pressure) is lower than it is so the PCM increase the pressure with allows more fuel to be injected. The fancy part is that its switched (relay, the mod turns off at idle so you don't get a rough idle known with the mod) and adjustable (potentiometer).
Post Fiend
Joined: Apr 2004
Posts: 12,835
Likes: 3
From: Silver Lake Dunes, MI
Too fast for me William. BTW sorry I ignored your calls today I was elbow deep in a E4OD when you called then had to rush to an outing with the wife.
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 104
From: Ashland City, TN
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Posting Guru
Joined: Dec 2006
Posts: 1,081
Likes: 0
From: Gladwin,Mi
thats why I didnt call you back...did not leave voice mail so must have not been important....I was sittin in the garage watchin TV all day,phone was in the house
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