2004 6.0 **** update ****
Logistics Pro
Joined: Mar 2007
Posts: 4,604
Likes: 4
From: Claremore, OK
Your okay with EGT in the 1300F-1400F range for short periods of time, it's after several miles/minutes that I'd get a little concerned. Where did you stick the pyrometer probe? I've got mine in the exhaust manifold right next to cylinder #8...so my numbers will be higher than someone that's got theirs aft the turbocharger. Also, what brand gauges are you using? If the boost is pneumatic, I'd say using controlled compressed air might be able to test the gauge. If they're electronic (like my Isspro EV2), you should be able to get the ohm specs from manufacturer to test the sending unit. Most of the time when guys have gauge issues (faulty readings) it's the sending unit that's causing the problems.
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Freshman User
Joined: Aug 2011
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the pyrometer probe is in the exhaust manifold, the gauges are glowshift gauges, the boost gauge just has the air line that runs from the back of the gauge to the port where i taped the elbow on the intake, the the power and grounds for the lights on it.
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I hooked it up to a air compressor, couldn't really set the pressure on it every time i gave it a little air the gauge pegged out at 60 psi, so i know the gauge needle is capable of going over 10 psi lol 
....I not sure at this point, I do have one gauge im gonna have to send back (fuel pressure) the button on the front is stuck and wont let me change the illumination but the gauge works fine, is it possible i might have a turbo or some kind of air intake issue that i was not aware of until i got the guage?
....I not sure at this point, I do have one gauge im gonna have to send back (fuel pressure) the button on the front is stuck and wont let me change the illumination but the gauge works fine, is it possible i might have a turbo or some kind of air intake issue that i was not aware of until i got the guage?
Logistics Pro
Joined: Mar 2007
Posts: 4,604
Likes: 4
From: Claremore, OK
If you had an intake problem...it would be the unison ring or vanes that are stuck on the intake side of the turbo; or cracked CAC boots. You could check for over/under boost codes. Not sure if it will throw a CEL for that...but you would think so since it would effect the emissions. The CAC boots would be cracked or loose. But since your gauges use an actual tube from the elbow to the gauge, I'm thinking you might have a leak or kink somewhere.
Mountain Pass
Joined: Oct 2010
Posts: 237
Likes: 3
From: Athens, Tx
This wont help your boost problem but with that fuel pressure gauge if you turn the lens ring you might be able to swap colors. I just got one that was doing same thing and after looking at it noticed that the button was in a bind cause lens got turned when I was installing into pod.
Matt
Matt
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I actually just spoke with tech support and they told the that exact thing and it works fine now, 
Kindda felt dumb thought emailing support and then all i had to do was turn the gauge about a tick and now the button works. 
, thanks for the reply though i was ready to send the thing back for a minute.
Kindda felt dumb thought emailing support and then all i had to do was turn the gauge about a tick and now the button works. , thanks for the reply though i was ready to send the thing back for a minute.
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Update****
Well i finally found the issue, I took another section of slightly larger air line and hooked up to it and the boost is showing right now. so either the line they supplied was bad or it was just too small. the hose i used was a 3/16 inside diameter so i had to use hose clamps to keep it on the port on the back of the guage but now when you gas it, it shows 20-27 psi depending on how hard you are running it.
Thanks all for the help and comments, Its alot easier when you got others to help out that have worked with these things before.
Thanks all for the help and comments, Its alot easier when you got others to help out that have worked with these things before.
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