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5PSI max w/some modes!?

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Old 04-02-06, 11:03 PM
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i dont recall seeing black smoke from exhaust. ima check 2morrow to make sure when i start boosting and when it reaches 5psi.

do u mean rtek 2.0?

the turbo had no play, and it spools good to 5psi, so i dont think its the turbo but i could be wrong. the mistu bov sounds like it goes off early, idk if anyone else has the samething, but when i hit the acclerator pedal alittle (even in when im not in gear) i can hear the bov releasing some air and im not even boosting yet. is that common? or is the spring messed up?
Old 04-02-06, 11:31 PM
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It releases pressure under throttle? That's not supposed to be happening...
Old 04-02-06, 11:33 PM
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yea i just tap the gas alittle and i can hear the bov opening alittle...not a full blown "pshhhhhhhh" bit a lil "pss" if that makes any sense
Old 04-02-06, 11:37 PM
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Does it do that when you less off, or when your still holding it down, if it does while your sitll holding it down, then that can be your problem. Just replace the BOV with a piece of pipe to test and see if that the problem.. if yuot boost goes back up to normal, replace the BOV.. And don't run with out a bov for to long... more then a week or so.. not good for the turbo.
Old 04-02-06, 11:42 PM
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What were those lines you were showing me that were reRouted: from turbo to this and that. . . My mind was boggin out today, I couldn't really focus to what you were showing me... I didn't even take snapshot of it...totally forgot.
This is just from out somewhere but did you check the Map Sensor? Like the voltages?_this is just a wild guess...
Can a faulty map sensor affect this? (idk)

Just replace the BOV with a piece of pipe to test and see if that the problem
yah, that's one of my suggestions 2
Old 04-02-06, 11:55 PM
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Originally Posted by trainwreck517
Does it do that when you less off, or when your still holding it down, if it does while your sitll holding it down, then that can be your problem. Just replace the BOV with a piece of pipe to test and see if that the problem.. if yuot boost goes back up to normal, replace the BOV.. And don't run with out a bov for to long... more then a week or so.. not good for the turbo.

so just place it with a piece of pipe? i cantry that. it releases alil when i let go of pedal. im also gettign this bucking when im boosting alil in 3rd or 4th gear, after i let go of pedal it bucks on me alittle. idk if that has to do with my problem also.

What were those lines you were showing me that were reRouted: from turbo to this and that. . . My mind was boggin out today, I couldn't really focus to what you were showing me... I didn't even take snapshot of it...totally forgot.
This is just from out somewhere but did you check the Map Sensor? Like the voltages?_this is just a wild guess...
Can a faulty map sensor affect this? (idk)
no i havent checked the map sensor yet...i forgot to check mines when u did urs. ts like a pipe wit a vac hose running from turbo compressor, i think it runs to wastegate but on mines i have the vac line running straight from the turbo to the wastegate, bypassing that little pipe in front of turbo.
Old 04-03-06, 12:26 AM
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The bucking might be normal because you have an open vent BOV, so your engine runs stuiped rich while the BOV is venting off. But if your getting bucking while still on the throttle.. could be a boost leak.

Map sensor shouldn't affect this. Most likely nothing eltrical.. has to be something mechanical failing. I'd first start with checking to make sure the wastegate is rod is hooked up the lever, then bov, inspect the turbo itself.. Take of the ducting, and check for play. Also spin the turbo, it should spin freely and smoothly.
Old 04-03-06, 06:11 AM
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Originally Posted by trainwreck517
The bucking might be normal because you have an open vent BOV, so your engine runs stuiped rich while the BOV is venting off. But if your getting bucking while still on the throttle.. could be a boost leak.

Map sensor shouldn't affect this. Most likely nothing eltrical.. has to be something mechanical failing. I'd first start with checking to make sure the wastegate is rod is hooked up the lever, then bov, inspect the turbo itself.. Take of the ducting, and check for play. Also spin the turbo, it should spin freely and smoothly.
i checked the turbine and it span fine, had no play. i have checked the rod by the wastegate by revving it and it moved. and it bucks after i let go off the throttle.
Old 04-03-06, 06:32 AM
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1st gear= I get 5psi around 4k I would say
2nd gear= 3,500-3,800

I noticed when I boost in a higher gear and let go and bucks on my A/F goes rich and then off.
Old 04-03-06, 12:28 PM
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try to mash your BOV with a hammer, that guy wasnt joking i used to work at a DSM specialty shop lol when i first heard that i was shocked haha so either replace it with a piece of pipe or crush your BOV like mentioned previously.
Old 04-03-06, 12:31 PM
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Lol ima have try to bang it 2day and see if it helps.
Old 04-05-06, 03:33 PM
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Ok so I tried the piece of exhuast pipe and it went up to 10psi and then I backed off. So it was the mitsu bov leaking. Thanx a lot guys!
Old 04-05-06, 04:19 PM
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Thanks to me!~ I told you that BOV is crap and to put an exhaust piece from an auto parts shop.~!. u just won't listen... hahah just kidding

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