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Getting conflicting answers. Changing ECU: Disconnect battery to prevent shock?...

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Old 04-10-2007, 07:50 PM
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Default Listen to the COB. He's an EECOB afterall ;)

He's electron-friendly =)
Old 04-10-2007, 08:08 PM
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nah. no power to ecu when the car is off.
Old 04-10-2007, 08:11 PM
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Yes brother EECOB, you don't disconnect your battery either, correct?
Old 04-10-2007, 08:30 PM
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Default Hell no ;)

I'm not an EE, just a crazy computer scientist... wtf is that? Or a Psychologist: I'm degreed in that too... well, at least I can definitely tell ya who's gone batty in this **** :x
Old 04-11-2007, 06:13 AM
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Default Look at the ECU connectors

I think you will find some of the large power pins are different lengths. I've always assumed this means that +12 is disconnected before ground as you release the connector.
Old 04-11-2007, 09:46 AM
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Default 3rd...

I've changed my ECU about 20 times and never disconnected the battery. Just make sure the ignition is turned off.
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