6.0 dropping boost

[DEEZUZ]

Got one that's throwing me for a loop.

06. Manual. Egr gone.

The customer installed new Ford map, new ebp sensor(Dorman).

Rowing through gears you lose boost. It just drops.

I found the ebp tube was plugged. Blew it out. It ran great. Few weeks go by, it's back same Thing.

I find his ebp koeo is 6psi. Install new sensor. Now ebp is OK, I won't say perfect.

Same Thing. I put a new garret on it 2 years ago, don't think that's the issue.

 

[DEEZUZ]

I want to say it even over boosts as I've seen 29.9 psi on map

 

[6.0 Tech]

What’s vgt doing?


Sent from my iPhone using Tapatalk

 

[DEEZUZ]

All over the place. Will get specifics tomorrow but it will drop to 14.99 sometimes.

What’s vgt doing?


Sent from my iPhone using Tapatalk

 

[6.0 Tech]

All over the place. Will get specifics tomorrow but it will drop to 14.99 sometimes.

My guess is you’ve possibly got a boost leak opening up, or an exhaust leak. What’s all done to the truck? Tuned, egr, exhaust?


Sent from my iPhone using Tapatalk

 

[DEEZUZ]

13.9 ebp cold with shit sensor. 14.5 with new oe sensor.

Cold the vgt shoots to 84%, after 1 min now 75%.

Cold idle ebp 17.2

Vgt drops to 14.99 during event and the exhaust sounds like machine gun, popping and such.

 

[DEEZUZ]

New oe sensor the ebp hot koeo was 20 psi. Tearing into harness now but this hasta be pcm issue.

 

[DEEZUZ]

 

[DEEZUZ]

The repeat codes are p0299 turbo boost p0069 map corr

 

[DEEZUZ]

My guess is you’ve possibly got a boost leak opening up, or an exhaust leak. What’s all done to the truck? Tuned, egr, exhaust?


Sent from my iPhone using Tapatalk

No egr, he claims no tune but the cooler is gone but it nevers throws egr codes like 1408. It's a manual straight exhaust... The truck acts like a plugged cat

 

[DEEZUZ]

This happens too sometimes.

 

[DEEZUZ]

Thanks brother.

 

[DEEZUZ]

Concern is I've got 20 psi charging this cooler and it's slightly bigger than a pinhole leak. Gotta fix what's broken first..

 

[6.0 Tech]

Concern is I've got 20 psi charging this cooler and it's slightly bigger than a pinhole leak. Gotta fix what's broken first..

Could be something where it’s getting hot and expanding as well, and with it on the ground it’s cold enough to only be a small leak, but once it’s up to temp and the intercooler is heat soaked, everything expands and it gets bigger. Hopefully that’s all it is, and it’ll be out of your hair


Sent from my iPhone using Tapatalk

 

[DEEZUZ]

Damn.

Same issue.

 

[BrewTown]

What does it do with the EBP unplugged? I had an issue with an '06 Auto, traced it all the way to the resistance? I think at the EBP plug would change depending on if the dome light was on or not. I never did find the short, he just ran with it unplugged. Landscaper truck.

 

[DEEZUZ]

What does it do with the EBP unplugged? I had an issue with an '06 Auto, traced it all the way to the resistance? I think at the EBP plug would change depending on if the dome light was on or not. I never did find the short, he just ran with it unplugged. Landscaper truck.

100% brand new vehicle ebp unplugged.. Wow.

 

[BrewTown]

100% brand new vehicle ebp unplugged.. Wow.

It's running off an inferred EBP table. I can't tell you how to fix it, but I'm going to say something with that circuit is shorted, broken wire, ect... I traced mine back to something under the dash, at least that's where I was at. Never did actually fix it so I don't have an ending to my story...

 

[DEEZUZ]

I even pulled over, plugged back in and didn't make it 150 ft and knew the issue was there, turbo over boosted and low power. Unplugged, then rung every gear out 26/28 psi awesome power, can even lug it in 3rd and it'll spool right up.

 

[DEEZUZ]

It's running off an inferred EBP table. I can't tell you how to fix it, but I'm going to say something with that circuit is shorted, broken wire, ect... I traced mine back to something under the dash, at least that's where I was at. Never did actually fix it so I don't have an ending to my story...

It's going to be up to cust if we run it unplugged or dive deeper.

Like said it's an 05/06 with egr doodled but he claims it was never tuned but no cel and no 1408 egr codes... It's got to be tuned.