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03-28-2013, 08:40 AM | #1 |
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Anyone else got a noisy ECU?
Hi all
My ECU is noisy. I'm talking about the main ECU under the dash up near the glove box. I think it's either transistor switching or capacitor noise. It sounds like a light ticking noise which varies with speed and cuts in and out depending on load conditions (which reflects the switch-over between port and direction injection, so it adds up to be injector switching related). It's pretty annoying, but before I look at getting the dealer to replace the ECU i'd like to find out if anyone else is suffering it. And before anyone asks, yes I have a noisy high-pressure fuel pump, and no it's not that. |
03-28-2013, 09:28 AM | #2 |
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theres something similar going on around my glove box. i havent pin pointed the noise but its def coming from inside or around my glove box.
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03-28-2013, 04:22 PM | #3 |
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Were the wipers on? That's the only clicking in front of me that I've noticed.
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03-28-2013, 05:32 PM | #4 |
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I think there are some relays behind it that click when you set the heater controls, wipers, turn signals, headlights, ... These are usually located under the hood in most cars.
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03-28-2013, 05:57 PM | #5 |
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I have never heard physical sounds coming from normal solid state components or IC's. Relays however, do have a moving component which can give of a clicking sound when actuated.
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03-29-2013, 03:54 PM | #7 | |
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Quote:
I'd look to see if there are any relays back there. |
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03-29-2013, 05:57 PM | #8 |
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04-16-2013, 05:59 AM | #9 |
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Bump
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04-16-2013, 09:51 AM | #10 |
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Are you sure it's not the HPFP? i know mine can be a kind of loud at partial throttle(50-60%), moderate load in the 3-4k rpm range.
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04-16-2013, 09:53 AM | #11 |
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Noise generator maybe???
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04-16-2013, 10:03 AM | #12 | |
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Quote:
I'll have to get a passenger to stick a stethoscope on it to confirm. |
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