i have the edge juice w/ attitude with the pump wire tapped on my 02. lately it feels like its jumping back and forth fromlevel five to stock at about half throttle. works fine closer to and at WOT. seems to be running fine on stock. it makes the whole truck shake when it does it but you cant hear a change in engine noise. what would be doing this?

thanks

 

You sure it's not your clutch slipping?

 

no its different than a clutch slipping. its really jerky. and its at half throttle not at full. and i have a southbend double disc so i sure hope not

 

any codes? if happening only at a certain pedal posn I'd suspect APPS

 

check your wire tap at the pump. Mine came apart. To check it, split the heat shrink and unscrew the cap where the wire goes in the tap connector. Dont worry, it's reusable. Ensure the wire is sufficiently inserted and tighten. Give it a tug to ensure it's secure and heatshrink it again. If that's not the problem, could be the vp44 starting to give out

 

could it be the wire tap in the fusebox inside the door not making proper connection?

 

when mine did that the monitor stopped working...
did you pull any codes?

also you can pull the cover off the back of the juice and it will show scrolling lights if the wire tap is good (its described in the inst manual)

 

there was one code a few days ago. dont remember what it was.

 

i guess i could try just unhooking the wire tap and see if it goes away right?

 

have it scanned again, without it your just guessing
could be anything, map/apps/vp/ecm/grounding issues/failing edge...etc

 

just re-read your post, if you have an 02 you can do the key on key off trick to pull the codes out...

also recheck all your defaults/max settings on your attitude monitor, I have accediently set my max boost to "0" and truck was defueling, I thought for sure something was broken

 

il just check it witht the scanner. i work at a shop so i have access to stuf like that. i have my max egt at 1500 and boost at 40. ill watch the backdown % to see if its doing anything.

 

p1693 - MIL fault in companion module
thats the code it comes up with but i cant find what it is. anyone know?

 

could it be the boost fooler in the Edge screwing up? cuz it seems like it starts to act up around 22 pounds of boost right up to about 30

 

You probably should have another code to go along with it. When my threw that code it also threw the P0216, injection pump timing failure, and that is exactly what it was.