over boost problem - Ford Powerstroke Diesel Forum
 
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post #1 of 4 Old 04-17-2011, 04:54 PM Thread Starter
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over boost problem

I have a '95 F-350 7.3 that I put a '99/03 turbo and up pipes on. In order to get this turbo to fit I had to eliminate the waste gate actuator and welded the valve closed on the outside of the turbo. I recently installed stage 1 injectors, TS performance 6 position custom tuned chip and a new ECM. I had no gauges until this upgrade so I have no idea what boost levels I was hitting before the upgrades , but now I'm hitting 25psi and the computer is throwing an over boost code. This happening at around 25 2600 rpm so I know there is alot more on tap but I can't get to it. I know I need head studs , they're next on the list. Does anyone know where I could get a blow off valve for the intake side or will this have to be addressed with the computer? Any help would be greatly appreciated. Thank you.
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post #2 of 4 Old 04-17-2011, 04:59 PM
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Originally Posted by southGA'95 7.3 View Post
I have a '95 F-350 7.3 that I put a '99/03 turbo and up pipes on. In order to get this turbo to fit I had to eliminate the waste gate actuator and welded the valve closed on the outside of the turbo. I recently installed stage 1 injectors, TS performance 6 position custom tuned chip and a new ECM. I had no gauges until this upgrade so I have no idea what boost levels I was hitting before the upgrades , but now I'm hitting 25psi and the computer is throwing an over boost code. This happening at around 25 2600 rpm so I know there is alot more on tap but I can't get to it. I know I need head studs , they're next on the list. Does anyone know where I could get a blow off valve for the intake side or will this have to be addressed with the computer? Any help would be greatly appreciated. Thank you.
you can get a boost fooler im not really sure since its a 95 and i dont know who your chip is through but cales tunes you dont have to worry about over boost his tuner fixes it. But again not completely sure since its a 95. Someone else will have to chime in.

Some people are like slinkies they are completely useless but they still bring a smile to your face when you push them down a set of stairs
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post #3 of 4 Old 04-17-2011, 05:23 PM Thread Starter
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My chip is from Bean's Diesel and I had to inform them of all modifications to get it tuned. It only does this on the extreme setting so it's fine to drive and tow with but that's the fun setting and I would love to be able to use it to it's full potiential.
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post #4 of 4 Old 04-18-2011, 06:40 PM Thread Starter
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problem solved (i hope)

Strictly Diesel has a product called "Over Boost Annihilator". 7.3's defuel at 24 P.S.I. , this mechanical device replaces the rubber hose running from the intake to the passengerside firewall and keeps the computer from seeing more than 22/23 p.s.i. therefore not tripping the overboost code. I ordered one tonite and hopefully have it by the weekend. I will post what the results are. And I might add they're less than a benjamin even with shipping from AZ.
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