BOV Confusion/I lack power =(

[yongai27]

Im getting a less power all of a sudden. My car engine/exhaust sounds different, sort of duller/muted than it normally sounds. Also, when I blow off, my hks bov sounds super weird. But my boost gauge seems to be recording everything as normal, the vacuum is at 21 which is normal for the car, and boosts at 9/10psi, but as I said before, it is slower, and sounds different. Can anyone lead me in the right direction? No codes are on..i really don't know what else to write...the bov isnt making that whistling air sound it normally does, its really quiet. i dont know what else i can tell you.........:/ its super weirds

 

[Mikael_7m]

i guess you'll need to explain a little more....
like is there more smoke than normal, is it throwing any codes etc.

 

[hvyman]

Headgasket maybe?
Clutch slipping?

Wierd dosent really describe.

 

[D.J.T.]

Boost leak? Vac leak?

EDIT: Never mind i can't believe my mind slipped the boost gauge & vacuum part... i need a break.. :nono:

 

[Blackdawg]

knock sensors need to be rewired?

 

[Crashoveride]

knock sensors need to be rewired?

He says he has no codes so theres no reason to mess with that.(but that code does make your car idle wierd)..check your intercooler piping see if one got loose.

 

[D.J.T.]

knock sensors need to be rewired?

Do knock sensors make the car stall? When I get the 52 code it idles just fine. But when i turn it off & come back a couple minutes later & start it back up it dies immediately or idles at 500 rpms then dies or just idles roughly at 500.

 

[yongai27]

all my piping is on super tight, the car is making a weird putt putt sound at idle now, or i just noticed it..

 

[D.J.T.]

all my piping is on super tight, the car is making a weird putt putt sound at idle now, or i just noticed it..

Not too tight now, itll tend to break the old silicone couplings & a supra as a 1st car... Young people tend to get crazy.. well im 18 now but when i was 16 I had a 90 Celica GT for a 1st car, broke 5 axles & got wrecked & pretty much matured.

Take care of the car my friend, you don't value what you have till you break it. :cry:

Check the Engine Oil, Timing, fuel pressure, compression. anything that would make you lose power.

 

[yongai27]

oh i have pretty thick couplers, and it wasn't like super super tight, but like i meant like it definitely wasnt lose...hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm im so depressed

 

[D.J.T.]

oh i have pretty thick couplers, and it wasn't like super super tight, but like i meant like it definitely wasnt lose...hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm im so depressed

Look up a place called "Harbor Freight Tools" they got tools for cheap, you can get a compression tester. Fairly simple but with the 7M... youll have to move around the coil packs, just take out a spark plug, screw in the tester in place, disconnect the fuel pump relay & crank the engine, specs should be in TSRM. & about the couplers yea.. i cracked the one on the Celica & that crack just kept going so never over tighten plastic or aluminum, IT WILL BREAK.