View Full Version : unhooking MAP sensor
mx684
12-31-2006, 06:11 PM
I have the edge ez on my truck, and i unplugged the map sensor right at the motor....left the ez still hooked up like normal..and now it will pour out all kinds of black smoke...by unhooking that like i did..what exactly is it doing??? aside from pouring out all that smoke.. will it hurt anything to have it like that????
blackdiesel
12-31-2006, 06:21 PM
it wont hurt anything
and what it is doing is not reading the boost #'s. This allows it to dump all the fuel in at a earlier RPM when the engine cannot burn it. Thus all the black smoke
i was one of the first to run my comp like this. i left it that way for a long time and never did any damage....
mx684
12-31-2006, 06:31 PM
cool. thats good to hear. just wasting alot of fuel im guessing..
could i splice those wires and hook in a switch to the dash so it would be normal or if i flipped it i could get alot of black smoke?
blackdiesel
12-31-2006, 06:35 PM
cool. thats good to hear. just wasting alot of fuel im guessing..
could i splice those wires and hook in a switch to the dash so it would be normal or if i flipped it i could get alot of black smoke?
ive herd of guys doing this, but i never did it. 1) i always wanted the smoke and 2) i didnt have the comp for much longer
but i dont see why not. Give it a go and see what happens
mx684
12-31-2006, 06:43 PM
i would like the smoke all the time also. i just figured it is just wasting alot of fuel for no reason so i thought of the switch just for a little fun from time to time. i will probably just go ahead and give it a try and see what happens..
thanks again.
TNfarmboy
12-31-2006, 09:09 PM
There are lots of post on this if you search a little. I would think all that extra fuel might do a little cylinder washing...over time.
scottsjeeprolet
12-31-2006, 09:15 PM
I'm addicted to the bottom end power it gives me. Don't want to plug it back in.
Tommy93w350
01-01-2007, 08:52 AM
I've never tried it, I want to........ I'm scared!!!
mysterync
01-01-2007, 08:57 AM
Im Gonna Try it.... I just need a camera now! Im Still Lookin For me a 3rd Gen....
Adam3291
01-01-2007, 09:46 AM
I haven't bombed my truck yet but I'm guessing it wouldn't hurt nothing on a stock truck, here is the stupid question where is the dang thing located.
scottsjeeprolet
01-01-2007, 09:54 AM
I haven't bombed my truck yet but I'm guessing it wouldn't hurt nothing on a stock truck, here is the stupid question where is the dang thing located.
You shouldn't do it without a box that does boost fooling. Like EZ or the Comp.
It just won't work and will only set a CEL.
TNfarmboy
01-01-2007, 10:57 AM
It is located just behind the fuel filter....but wat Scottsjeeprolet said was it won't work without boost fooling. ECM will defuel without the signal and the truck will have NO power.
jriggs_18
01-01-2007, 11:38 AM
I did this with my juice and it worked great for a few days then just driving one day I lost all my power, it was all I could do to keep going about 30mph on flat ground with no trailer, I plugged it back in and all was well, but it does pour some smoke unplugged, I like the switch idea, which wire should be switched??
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