first off i have a 93 civic ex coupe, b16a, stage 2 clutch, short ram air intake, stock exhaust but no muffler, and lowerd

well today my car started making this very weird sound....
its like a cross between a hissing and pssst kinda sound...not a knock or a tick...kinda like a leaky air hose but a little diffrent
the sound goes with my rpm's....more rpms the faster the sound is...
my check engin light comes on now too....
when ever im driving it sounds like its comming from under me or like just infront of me...
i turned off all the heating compnets, thinking it might be that...no
and my air filter is on snugg...so its not that...
the sound is also very faint when ever i put in the clutch and rev it up...but its really loud in 3rd gear...

i have no clue what it is...i was thinking it was like my i.m. or something...or maybe a hole in my exhaust...but i jacked it up and theres no hole...

the only thing that i notice is that theres like a piece of metal that is conned between the resignator and the exhaust pipe and it looks bent....(no camera for pics)

sorry this is long but i am really lost here

thanks!!!!!!

 

Hey,
Is it a faint high-whine type of noise?

You mention you hear it well in third gear?
Possibly your input-shaft bearing? I wouldn't describe it as a 'hissing' but everything else seems to pretty accurate to what I was experiencing.

Check and figure out what code your CEL is giving off, that would help a ton. I don't think the CEL would come on for input-shaft bearing; but it could be unrelated. Could be your exhaust components rattling, that sometimes gives off weird sounds.

 

yeah its kinda like a whistle noise....
please dont call me dumb, but whats a input shaft bearing...?

and how do i get the code for my CEL?

thanks man!

 

CEL thread

https://honda-tech.com/zerothread/1901557

 

ok so i followed the directions....and my cel dosent come on...

so any mroe ideas?

 

im not sure but mebbe throwout bearing??? sounds like what my car used to do... not sure no promises but mebbe

 

must be doin something wrong with the CEL code. paper clip and put the key into the ON position? should throw you a code

but if its a hissing sound, do you have an vac leak?

 

i dont think i have a vac leak..

but when i was driving it this morning the cel came on after driving it....

the cel wolt come on unless i have drove it for about 15min...if i jsut sit and let hte car un it wolt come on...only when im driving it...

so will the flash codes for the cel still come up if im going down the road?

 

it could also be your throwout bearing... mine makes a funny noise cus its going out lol (should replace it b4 i kill my car) but yea... check that too.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by justinrl613 &raquo;</TD></TR><TR><TD CLASS="quote">ok so i followed the directions....and my cel dosent come on...

so any mroe ideas?</TD></TR></TABLE>
u should push the jumper pin all the way in and i think it should be your knock sensor..that will be code 23... it is common on b16a swap into ek or eg civic...are u using p30 ecu ?
about your exhaust rattle sound..what kind of header and cat converter are u running ?

 

your right!!!

i got the cel blinking and i got 23 and 15
15 Ignition output signal
23 Knock sensor

now does anyone know how to fix thoses two things..and how bad is it...like hsould i go to a diffrent car till i get it fixed?

 

and idk what ecu its got...if theres a way to tell the diff, then tell me and ill give you what i know....

im using stock exhaust

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by justinrl613 &raquo;</TD></TR><TR><TD CLASS="quote">your right!!!

i got the cel blinking and i got 23 and 15
15 Ignition output signal
23 Knock sensor

now does anyone know how to fix thoses two things..and how bad is it...like hsould i go to a diffrent car till i get it fixed?</TD></TR></TABLE>
to fix the knock sensor..the best way to do is get a chipped p28 or chipped p06 ecu ro some people alter the harness a bit to bypass the knock snesor.. and about ignition output signal..i am not sure about that

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by justinrl613 &raquo;</TD></TR><TR><TD CLASS="quote">and idk what ecu its got...if theres a way to tell the diff, then tell me and ill give you what i know....

im using stock exhaust</TD></TR></TABLE>
it should be a sticker on the ecu...if u can get to it..let me know the serial number on it
u are running stock exhaust but how about header and cat converter? stock d series header and cat converter wont fit onto b series engine

 

yeah its a p30

serial #=
37820-p30-101
470-205967 ASH

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by justinrl613 &raquo;</TD></TR><TR><TD CLASS="quote">yeah its a p30

serial #=
37820-p30-101
470-205967 ASH</TD></TR></TABLE>
ok here is what u can do...u either buy a chipped p28 ecu or p06 or find someone to bypass the knock sensor

 

yeah its a p30
serial #=
37820-p30-010***
470-205967 ASH

the header and cat is all stock for a b16a

and how much andwere can i find a chipped p28 or p06 ecu?

and is the knock sensor making the noise?

or is that the ignition output singnal?

 

this is where i get my chipped ecu from http://www.phearable.net/
knock snesor wont make any noise but some people say vtec wont engage because of knock sensor CEL on.. and the rattle sound..crawl under the car and find out where it is coming from.. i had this problem once and it turned out that my afterkaret mushroom type of air filter is rattling against engine bay chassis.

 

thanks for informing me on the cel problem 23

but if that isnt the cause of the noise...then i wonder what is....

does anyknoe know anything about the ignition output signal, or if that will cause problems?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crazyguy &raquo;</TD></TR><TR><TD CLASS="quote">this is where i get my chipped ecu from http://www.phearable.net/
knock snesor wont make any noise but some people say vtec wont engage because of knock sensor CEL on.. and the rattle sound..crawl under the car and find out where it is coming from.. i had this problem once and it turned out that my afterkaret mushroom type of air filter is rattling against engine bay chassis.</TD></TR></TABLE>

the air filter is tight...and the noise goes with my rpms....so im lost....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by justinrl613 &raquo;</TD></TR><TR><TD CLASS="quote">

the air filter is tight...and the noise goes with my rpms....so im lost....</TD></TR></TABLE>
crawl under the car and find out is the only way..

 

alrighty thanks for your help!