Beeping noise near ECU area after letting off throttle.

[Deadly BlaZe]

I noticed that when i'm boosting and right after I let off the throttle, I hear a beeping sound near where the ECU is. It's really quite and the only time i can hear it is when the music is off. Any ideas on what it could be?

 

[marcmsj]

Do you have any kind of aftermarket electronics hooked up? There shouldn't be anything beeping.

 

[Deadly BlaZe]

Nope no aftermarket electronics.

I noticed it only happens sometimes, not all the time. Happens right as soon as i let off the throttle like a bov.

 

[travunder]

it could be the mpi relay its right next to it and those tend to make noise before they break.it happened to me twice

 

[Rob10_99]

are you sure its a beep?
if its a relay it might be buzzing, which would mean the electrodes are burning out,
does your car shake or shimmy at all after you let off the gas? driveline?

when you hear the beep, does it always happen when you hear your BOV?

 

[Deadly BlaZe]

im 100% sure it's a beep. At first I mistook the beep for my cell phone, but then i realized my cell phone doesn't make random beeps. And yes it happens around the same time i hear the bov. The car does jerk a little when i let off the gas, but i never saw it as anything abnormal; just engine braking.

 

[Eric_7810]

You have the stock radio?

 

[dyno_detour]

Do you have a car alarm hooked up? Or aftermarket amp?

 

[Deadly BlaZe]

All electronics are 100% stock down to the radio.

 

[1point8Ltpower]

i have heard a beeping in my car too, im not sure exactly when it happens, i have noticed it when i get to 55mph or so, it is two or three extremely quite beeps, let me know if you figure it out