ClutchBurndout-:( Posted June 2, 2009 Share Posted June 2, 2009 hai all, since i can remember this has been happening, i think this noise is coming from the ecu, i have a stock ecu and at a sertain throttle this realy high pitch beep comes on, its not loud and its not that annoying but its there and worries me that its a warning beep, the noise disapears once i either put more throttle on or less, but at that sertain level it will beep untill you change throttle. i think it does it in any gear i havnt realy taken notes to it alot. has anyone had a similar issue? cheers please note, I THINK its coming from the ecu, it may very well be coming from elsewere, its one of those noises where you turn your head and the noise disapears lol Link to comment https://www.sau.com.au/forums/topic/272805-high-pitch-squeel/ Share on other sites More sharing options...
Moodles2 Posted June 2, 2009 Share Posted June 2, 2009 Could it be coming from the passenger door speaker? it could be "alternator whine" being absorbed your sound system: http://www.termpro.com/articles/noise.html Link to comment https://www.sau.com.au/forums/topic/272805-high-pitch-squeel/#findComment-4630926 Share on other sites More sharing options...
mad082 Posted June 2, 2009 Share Posted June 2, 2009 i used to get a slight alternator whine from the stereo when it was turned right down but not off. sounded like an electrical whine and got louder with rpm not speed. was only just noticable Link to comment https://www.sau.com.au/forums/topic/272805-high-pitch-squeel/#findComment-4631005 Share on other sites More sharing options...
ClutchBurndout-:( Posted June 2, 2009 Author Share Posted June 2, 2009 yea this sounds like that, only it dosent increase with rpm, it is on/off with a sertain throttle Link to comment https://www.sau.com.au/forums/topic/272805-high-pitch-squeel/#findComment-4631211 Share on other sites More sharing options...
Wacky Dee Posted June 2, 2009 Share Posted June 2, 2009 I don't think ECUs make noise ... as has been suggested, check your stereo setup .. I had new speakers with a crossover box installed recently and noticed the same sort of whine, apparently it was picking up engine/alternator noise. They just moved the crossover box a bit and it went away. Link to comment https://www.sau.com.au/forums/topic/272805-high-pitch-squeel/#findComment-4631853 Share on other sites More sharing options...
kasanoff Posted June 2, 2009 Share Posted June 2, 2009 I get the same sound that you describe as well every now and then. Mine tends to happen at a certain engine load - I may be travelling in 4th at approx 60kmh, depress the throttle slightly due to a slight incline in the road and i get the noise. If I hold the throttle there and keep the engine loaded at that point, I can hold the noise. If I release the throttle or depress it further, obviously the load on the engine changes and the sound disappears. Kinda sounds a bit like faint feedback from speakers if you hold a microphone too close - but my stereo is never turned on. My thoughts were that it is some sort of engine noise, possibly intake/turbo... Link to comment https://www.sau.com.au/forums/topic/272805-high-pitch-squeel/#findComment-4632864 Share on other sites More sharing options...
ClutchBurndout-:( Posted June 2, 2009 Author Share Posted June 2, 2009 I get the same sound that you describe as well every now and then. Mine tends to happen at a certain engine load - I may be travelling in 4th at approx 60kmh, depress the throttle slightly due to a slight incline in the road and i get the noise. If I hold the throttle there and keep the engine loaded at that point, I can hold the noise. If I release the throttle or depress it further, obviously the load on the engine changes and the sound disappears. Kinda sounds a bit like faint feedback from speakers if you hold a microphone too close - but my stereo is never turned on.My thoughts were that it is some sort of engine noise, possibly intake/turbo... yea sounds alot like mine, i thought it was a boost leak or somethin, my sterio steup is pretty sound, so will have to check elsewear Link to comment https://www.sau.com.au/forums/topic/272805-high-pitch-squeel/#findComment-4633189 Share on other sites More sharing options...
Douse Posted June 3, 2009 Share Posted June 3, 2009 Do you have a Profec B? Link to comment https://www.sau.com.au/forums/topic/272805-high-pitch-squeel/#findComment-4633221 Share on other sites More sharing options...
(B1) MR_fanny Posted June 3, 2009 Share Posted June 3, 2009 +1...could be warning beep from your EBC possibly? Link to comment https://www.sau.com.au/forums/topic/272805-high-pitch-squeel/#findComment-4633852 Share on other sites More sharing options...
Douse Posted June 3, 2009 Share Posted June 3, 2009 Well there is that possiblity, but I have noticed that there is a really high pitch beeping type noise from the Greddy Profec B's....... I have learnt to ignore it Link to comment https://www.sau.com.au/forums/topic/272805-high-pitch-squeel/#findComment-4633944 Share on other sites More sharing options...
ClutchBurndout-:( Posted June 3, 2009 Author Share Posted June 3, 2009 well I don’t think so lol, I don’t have an ebc unless theres one hidden somewhere that the last owner didn’t mention, that would be sweet! Link to comment https://www.sau.com.au/forums/topic/272805-high-pitch-squeel/#findComment-4634005 Share on other sites More sharing options...
ClutchBurndout-:( Posted June 3, 2009 Author Share Posted June 3, 2009 Well there is that possiblity, but I have noticed that there is a really high pitch beeping type noise from the Greddy Profec B's.......I have learnt to ignore it its not actualy a beep persae, it’s a constant eeeeeeeeeeeeeeeeeeeeeeeeee Link to comment https://www.sau.com.au/forums/topic/272805-high-pitch-squeel/#findComment-4634021 Share on other sites More sharing options...
Douse Posted June 3, 2009 Share Posted June 3, 2009 Well yeah, hence i said 'beep type noise' Do you have a EBC? Link to comment https://www.sau.com.au/forums/topic/272805-high-pitch-squeel/#findComment-4634030 Share on other sites More sharing options...
ClutchBurndout-:( Posted June 3, 2009 Author Share Posted June 3, 2009 lol no not that I can see, but maybe the last owner hid it somewhere? Maybe to keep out of vision of the police? Ill have a look around under the dash n stuff to see Link to comment https://www.sau.com.au/forums/topic/272805-high-pitch-squeel/#findComment-4634050 Share on other sites More sharing options...
Douse Posted June 3, 2009 Share Posted June 3, 2009 I would say that would be your best bet. You can also see if there is a boost controlling solenoid near the turbo somewhere. If you have something like that then there is a fair chance that you have a electronic boost controller. Something like this: Link to comment https://www.sau.com.au/forums/topic/272805-high-pitch-squeel/#findComment-4634077 Share on other sites More sharing options...
datsfreak Posted June 29, 2009 Share Posted June 29, 2009 mine does this too. Do you have a standard exhaust? Maybe its a exhaust heatshield vibrating at a certain pitch. Link to comment https://www.sau.com.au/forums/topic/272805-high-pitch-squeel/#findComment-4685743 Share on other sites More sharing options...
SiR_RB Posted June 29, 2009 Share Posted June 29, 2009 mine does the exact same thing, even with the stereo off like others hav said, if im in 4th or 5th gear at 60km/h or so and hold the throttle in one spot it will start, soon as i just increase or decrease the throttle abit it goes away, but then comes bak.... its realy weird i dnt think its intake cos it does it in high gear, low speed and the boost needle is way down in negative land... hmmmmmmmmmmm Link to comment https://www.sau.com.au/forums/topic/272805-high-pitch-squeel/#findComment-4685832 Share on other sites More sharing options...
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