so i got my boost,egt,and trans temp gauges installed the other day and i noticed my boost is only getting to about 25 max and it seems like it backs off to 20-22 and holds? I have been really busy so i had a guy install it for me and after it was done i noticed he installed the boost probe on top of the intake horn? is this ok? could this also be why im not seeing more boost too. my old truck would boost to around 30 all the time so just wanting to know what you guys think. He said he has installed them there quite a bit and never had a problem but just wanting you guys opinion and if its ok why is my boost so low? any ideas or help is appreciated thanks

 

I dont think that the port in the intake would matter much or change your pressures any. I know that most gauges come with a boost bolt for the intake. As for your boost pressures I am only gettin 24psi for the most part if I get on it pretty good and that is with the wastegate plugged as well. I have checked for leaks through my intake system to make sure that i am not loosing boost. This might be somthing you might look in too if you havent pressure testing the Intake system.

 

i had him check the system for leaks and did not have any. also i was wondering if i can change the wastegate settings on mine since it is electronic? would a boost fooler maybe help me out more? i eventually am getting a smarty but until then....i was mainly just going off my old 05 and the boost numbers i saw with that.

 

The boost numbers should match the 05's, something is amiss.

I usually crimp the WG boost reference hose closed first and see if that brings the boost up. If it doesn't its a leak or defueling, if it does its an electronic problem.

 

K sorry to sound dumb but exactly where is the wastegate boost reference hose? all i see is an electrical connection below my turbo/in front? im new to the whole wastegate thing

 

At the base of that black cylinder with the electrical connection you should see a hose that runs towards the engine. It will connect to the WG acutator solenoid. It will be the only line you can see on the bottom of the turbo.

 

whats the best way to clamp it? and if i clamp it and my boost is higher what is my next step or do i just leave it clamped. sorry for all the questions

 

A small pair of vice grips works great.

It will tell you if its a boost leak or electronics. The electronics could be a lot of things from the MAP to the WG controller. Just gotta work on process of elimination.

 

k i will try that and keep you posted.

---AutoMerged DoublePost---

K so I did that and now I can get 35 psi of boost and it holds but I also got these codes:
P0234
P1755
P2509
U0121
No what is my next step and what do these mean

---AutoMerged DoublePost---

K so I did that and now I can get 35 psi of boost and it holds but I also got these codes:
P0234
P1755
P2509
U0121
No what is my next step and what do these mean

 

stock on my 06 was 32psi i beleive, correct me if im wrong.