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Automotive Forums > Toyota > Corolla/Matrix/Voltz - 87 Corolla Black Box under hood is buzzing
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Old 06-19-2004, 04:44 AM   #1
theboogieman
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Lightbulb 87 Corolla Black Box under hood is buzzing

I had a dead battery so I put a friends battery in started the car the with it running took it out and put mine back in. There is a black box under the hood with a few wires coming out of it and a throttle wire, it is now buzzing, buzzing buzzing, I dont know what it is. When i turn my key it starts then it also buzzes when the car is running.
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Old 06-19-2004, 06:53 AM   #2
Oz
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Re: 87 Corolla Black Box under hood is buzzing

You might have fried some/all of the ECU. That's why a clutch start of always better.
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Old 07-08-2004, 05:48 PM   #3
WissNX01
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Yep, your ECU is now a paperwieght. Good thing, though, your car is older, you might be able to get away with it for awhile until you get another one from a junk yard.
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