ECU problem

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08-24-2005, 10:40 PM

InsneDrmr

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ECU problem

My ECU tends to make some strange noises. This normally occurs when i have just started the car and am ready for take off. It also sometimes does it when Im driving...it will suddenly start making the noise. It sounds like a computer trying to read a 3.5" hard disk, or like its trying to reset. Any ideas?

08-24-2005, 10:57 PM

99Automagic

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You sure it's the ecu making this noise? As far as I know, there is only one part that actually moves, and that would be the screw. How is the car running?

08-24-2005, 11:01 PM

InsneDrmr

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Yea it has to be the ecu, I remember one time when I was resetting it, it had made the noise, and I can feel a little bit of vibration. The car runs pretty good...sometimes better than others. Not as good as it should be...but not horrible either.

08-25-2005, 01:47 AM

Nismo

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Isnt there an ac/heater vent under there by your feet? Maybe something around there is stuck.

08-25-2005, 11:58 AM

InsneDrmr

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bumpity bump

08-25-2005, 12:02 PM

njmodi

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It might be one of your climate control motors (if you have auto climate control)... the ECU has no moving parts (no hard drives, etc.).

08-25-2005, 01:02 PM

InsneDrmr

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hm...well if it is one of them, is anything wrong?

08-25-2005, 01:02 PM

njmodi

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Do you have auto-climate-control?

08-25-2005, 02:15 PM

InsneDrmr

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Yes

10char

08-25-2005, 02:22 PM

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njmodi

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Try this:
With the A/C on, use the mode button to change where the air is being vented (i.e. feet, vents, defrost vents)... each time you switch modes, you should hear a motor buzzing (might be really soft) - that is the vent control doors...

See if that sounds matches the sound you are hearing and describing in your original post.

08-25-2005, 06:17 PM

#11

InsneDrmr

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No its a completely diffrent sound. I know what you are talking about, and its not that. Is there anything else in that area?

08-25-2005, 10:15 PM

#12

InsneDrmr

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It did it again tonight...after a few seconds of the noise a code was thrown. Its the code 0309...which was determined to be a leak in a hose on the EVAP, nothing big...it can wait. But now im positive the noise is coming from the ECU.