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Old 07-25-2012, 06:51 PM
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Question Problems after EGR delete

So i finally got my egr delete in and done. i also put in the egt probe that came with my sct programer (shes been sitting around for months)
i took it out for her first test drive after getting it all together.

i was doing 45mph and i looked down at my sct and saw -.43lbs of boost. then i looked at my dash boost gauge and it was sitting on 0lbs. neither guage moved up or down while romping on it at all.

when i did romp on it, it was COMPLETLY gutless. absolutly NO balls what so ever.

i tried to research it a bit, and all i could find is that it could be one of the blue turbo hoses, or the y-pipe isn't lined up at the turbo correctly

any other thoughts before i tear it all back apart again
this is what i feel like doing to my truck >>>>

Last edited by HICKatvRACER17; 07-25-2012 at 07:09 PM.
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Old 07-25-2012, 07:36 PM
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Your unison ring may be seized in the turbo, did you inspect or clean it while you had it out?

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Old 07-25-2012, 07:47 PM
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this might sound dumb, but is your vgt solenoid plugged in, map sensor line re attached to the top of the intake manifold. most likely your y pipe inst seated into the turbo and its not spooling. can you hear the turbo whistle?
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Old 07-26-2012, 10:03 AM
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I wouldn't imagine it would be the turbo, as it ran perfect before the delete. I didn't have time to clean it as this whole project took forever, but i did look it over and it seems fine.

I just went outside and notice i forgot to hook the map sensor hose back to the intake! :-O however, that didn't solve all of my problems. i am, atleast, reading SOME boost pressure now. And yes, the vgt is plugged in. thanx for the help!

I do belive its the y-pipe connection, due to the fact i can smell exhaust under the hood while its running, and i can hear what sounds like a slight leak. would this really make me have practically no boost?
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Old 07-26-2012, 11:08 AM
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Yes that would make it have no boost/ little. The easiest way to align it is to take the 3 bolts out that hold the turbo in. Loosen the y pipe clamp and move it out of the way do you can see the joint. Wiggle the turbo and get the joint lined up, clamp it. Then bolt the turbo back down. Trying to get I lined up with the turbo bolted down is a major pita


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Old 07-26-2012, 06:48 PM
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MAP sensor prolly not hooked up or bad! If the rubber line is not hooked up you are not reading right and the motor dont know what to do!
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Old 07-27-2012, 11:17 AM
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Im headed out to try messing with that clamp. hopefully thats the problem, and hopefully i didnt crack my y-pipe or anything!
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Old 07-27-2012, 02:47 PM
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I ended up taking the clamp off and removed front turbo bolts and loosened rear turbo bolt. Pried a few times on the Turbo to wiggle it, then pulled the y-pipe back tight and tightened the clamp back down then replaced Turbo bolts and tightened.

Problem seems to be fixed and I have boost again! Woot!
Thanx guys!
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Old 07-27-2012, 04:58 PM
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Nice!

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Old 07-28-2012, 07:54 PM
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I actually think its still not right... what are you guys getting for boost at idle and while driving and at WOT? All my numbers seem to low...
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