my sr20 is running like s**t after 3000 rpm

[drift_artesia_auto]

just got the sr20det black top in the car... motor sounds really healthy and strong...i upgraded to a front mount intercooler and down pipe as well as hks blow-off valve and megan racing pipeing and muffler... car is converted to right hand drive so i didnt have too many problems with wiring or ac or anything like that however when i took the car for a test drive it pulls strong right from the start but after about 3000 rpm car sputters and bogs out...friends tell me i need a boost controller but not sure what to think at this point...anyone got any answers?? thanks and sorry if this ?? has been answered before kinda new here

[vocationalzero]

Sounds like or MAF (mass air flow) sensor took a dookie.

[EnjoiNismo]

intercooler pipping loose?

[surfer240sx]

hey! your friends are dumb boost vaccum leak...

[zach-Ka]

Your friends are very dumb. Do you have DOHC tach? Or are you just guessing its after 3k rpm's?If its at around 2400-2500 RPM's that its bogging then it your mafs, and your ecu is probably in fail safe mode now. Easy fixes. I have a mafs if you want it.If its after 3k rpm's the it definitely a bad boost leak. Check your couplings and BOV.

[drift_artesia_auto]

Your friends are very dumb. Do you have DOHC tach? Or are you just guessing its after 3k rpm's?If its at around 2400-2500 RPM's that its bogging then it your mafs, and your ecu is probably in fail safe mode now. Easy fixes. I have a mafs if you want it.If its after 3k rpm's the it definitely a bad boost leak. Check your couplings and BOV.

lol u guessed the first part right my friends are very dumb haha but yeah i think ur right the maf was my first guess and i replaced it but still does it so im gonna try checking for leaks like u said im sure ur right bcuz when i took the car for a spin i gave it all it had bcuz this problem frustrated me and one of my cuplings came loose so i put it back together tried it again and the same one came loose again could it be thats the one that needs to be addressed??? i really appreciate ur help this forum is THE S**T!!!!! thanks guys

[EnjoiNismo]

yeah i had a coupling come loose and my car wouldn't rev past 3k. Make sure there tighten down good. But that was just my problem.

[drift_artesia_auto]

yeah i had a coupling come loose and my car wouldn't rev past 3k. Make sure there tighten down good. But that was just my problem.

ok so i tighten up all my couplings turns out one of them was loose but when i tested the car again the problem was still there. my boost was like at 12 psi on a stock sr20 so i put a cheap boost controller from ebay and lowered the boost to 6 psi and the car now runs like a champ.... still the info is very much appreciated thanks for ur help

[duffman1278]

Probably leaking under the higher amounts of pressure. Possibly old and semi torn couplings?