what happens if you run truck without ebp hooked up at all,wires still pluged in but sensor not in fitting and pipe just blowing exh? I bought a new one put it in and got 50 miles and started a low boost again,cked codes ebp , took it out and thought what if- so i tried it, left wires pluged in and layed sensor on intake,took it up long hills with my 6200 lb trailer and i could not believe it, before when ALL was right 24 lbs boost,now no ebp 28lbs boost and its very responsive when in a hard pull when it changes gears, sounds strong, but can this hurt anything, i went on and pluged the pipe up so not blowing out. Was told from ford shop it controls the egr but i have no egr.

 

What code are you seeing? could be turbo related.

 

Was 24lbs the low reading? Some have lost 1 or 2lbs for EGR deletes, it freed up the restiction and increased flow. Don't be stuck on the boost number.

I'd rather have 1000cfm of 24lb boost than 500cfm of 26lb boost.

What year truck? You might have infered EBP.... If not, your mileage will tank.

 

yes 24 was the low,and i also lost 1-2 on the delete back when i done it, what would cause it to get worse mileage or how can you only get 500 cfm of 24 lbs ? btw its a 05

 

Your missing the point. By reducing the restriction in the intake (EGR delete) you normally increase flow... more air can move into the cylinders.... that's good. More air is better than less air.... period. Add pressure to the equation, more air at pressure is a HP increase.

Removing the EGR cooler increase air flow and may have reduce the amount of pressure to move that air... it's flowing freely so the turbo can move more of it.

With the EGR in place, the restriction increases back pressure so it's harder to move that air and therefore less air is moved, even if it's at a higher pressure... the turbo is working harder to move less air.

With some tuning you can probably gain that back, but honestly, I wouldn't be worried about 2lbs of boost... it's easier on the motor and your probably making more power and just done realize it.

 

I would however, remove and clean the trubo, probably a contributor to your mileage. The EBP sensor forces the motor to use actual values to fuel the truck, not a guess... which it does without the EBP working correctly, it's guessing how much fuel to use.

 

Think of it this way: when a garden hose is on with no nozzle on the end there is low pressure & high volume of water coming out. Partialy close the end of the hose with your fingure and the pressure increases but the volume of water decreases.

 

new turbo few mnths back, but your right on mileage,went way down on my last haul,im gonna hookup the ebp sensor again, i think this truck needs a updated flash, i dont know if ones ever been done, thanks.

 

A bad EBP sensor or a clogged EBP tube can cause mileage to tank. When you disconnect the sensor it forces the PCM to go off of table values and not sensor values.

 

found the problem, when i bought the new ebp sensor and pluged it in i must have lost the little sealing rubber inside the sensor ,it also keeps plugin from vibrating and getting no connection so i made a new one and noticed one little prong inside the new sensor pushed to one side, straightened it up,cleared code and fired up, works great no codes, cold start vgt shows 85 ideling and 65 when i idel it up and shows 2 lbs boost ideled up to 850.

 

Sweet. Do you have a way to monitor EBP? In a cold engine with KEy On Engine Off (KOEO) it should read the same as barometric pressure. Same for the MAP sensor.

Driving down the road unloadeded on level grade you should see a pressure ratio of about 1.1-1.3 (dividing EBP by boost).

 

what year


it may have sensed ambient pressure probably why it had more power out when sensor out the housing

 

its a 05, i cant read ebp ,only see a code on it if any there, i just cked mileage, unreal with my 6k trailer going 135 miles averaged 5.5 mpg,normaly averages 9.8 just trailer.

 

Are you using anything for live data? The SGII has an Xgauge for EBP.



Sean <BR>

6.0L Tech Folder

 

no i have the edge basic and it dont read ebp, it does read the vgt%.