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Old 03-02-2022, 04:57 AM   #30
Ol,fart   Ol,fart is offline
 
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Join Date: Jan 2022
Location: Gatesville Texas
Posts: 161
Quote:
Originally Posted by Thumper View Post
Capacitance inside the EFI computer can retain the settings, and there might even be an EPROM that it loads from during initial "boot". To dump the capacitance and be certain it is reset, hold the power lead to the ground lead for a few seconds (while it is NOT connected to the battery or anything!). This drains any capacitance that could make the thing hold onto codes. This is a great way to reset modules that have onboard coding (EPROM) that loads a factory default instruction list when connected.
In Automotive we call that a brain dead. But it doesn't work on most systems newer than around 2000 year model.
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