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Discussion Starter #1
My friend's 328 engine has

My friend's 328 engine has a popping that, thru extended diagnostics, appears that it might be caused by one of the electronic controllers. So one at a time I am going to test his Microplex and Jetronic ECUs in my car.
My question is is there a recommended method for disconnecting, switching, and reconnecting the ECUs. For instance should the battery be disconnected or should any other procedures be followed.
 
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Discussion Starter #2
Hi Mark,

just keep the key


Hi Mark,

just keep the key off to avoid any potential arcing.

That's about it...other than that they just unplug.

Regards, JRV
 
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Discussion Starter #3
Hi JRV:
We thought this was t


Hi JRV:
We thought this was the case and I appreciate your confirmation.

Thanks,
Mark
 
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