SR20DET problem.... no tuner shop can figure it out

[SlideStar]

I have a redtop sr20det w/T28
The problem I am having started a few weeks ago, basically the boost will
cut out between 4-5000rmp under load only. When not in gear it revs fine. The engine and turbo are both strong and I've tried almost everything I can think of to figure it out.

I've bi-passed the boost controller (still fucks up at stock boost)
tested the o2 censer
checked plugs (they look good)
checked for air leaks in intercooler pipes.
checked fuel pump
... I don't know :duh:

Has anyone had this problem or have any other Ideas?
the local place I usually go to couldn't figure it out either.
I need help.

[mooboy]

I had a similar problem when the metal spring that goes in the stock intake tube was missing and would cause the tube to collapse at full load.

[SlideStar]

I'm going to try a different ECU to see it the air/fuel is messed up...
I still have no clue :sadwavey:

[trsilvias13]

i had a problem liek that. i didnt know what i did to fix it. i got a new bov and made sure all my piping was secure and it fixed it.

[sr240mike]

SEARCH for hesitation/stumbling sr20det. This has been covered soooooooo many times. There are a Lot of things it could be.

[golfer17]

I had a similar problem when the metal spring that goes in the stock intake tube was missing and would cause the tube to collapse at full load.

exactly, i know of two other ppl who have had this happen on sr's, i dont know how it happens but somehow the intake gets blocked and causes the problem you are having, i didnt think it was a problem until i started seeing it pop up on the internet a bit too. definitely check it out.

[CHARLIE2020]

Tps.........