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Low 5v ref

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Low 5v ref
fixkick Offline
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#5
01-31-2021, 12:42 AM (This post was last modified: 01-31-2021, 12:44 AM by fixkick.)
on one ECU I repaired
someone hotwired the ECU sensors.
and D107 zener turned full on, and blew the copper traces from B5 outward (D107 is sacrificial device, or for handling huge noise glitches, it is a protective device. here. and can blow to hell.)

a new diode and jumper wire over the burned to hell trace the Ecu RUNS AGAIN.

IF 5V FAILS ON ANY ECU LOOK AT THE COPPER PCB TRACE ON B5 TO SEE BURNS. ( super common this)

do not use china knock off MAFs, ever, or doomed you be. use only ROCKAUTO.com they ban this crap for sure.
http://www.fixkick.com
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Messages In This Thread
Low 5v ref - by Yukonjay - 01-30-2021, 03:00 PM
RE: Low 5v ref - by fixkick - 01-30-2021, 10:37 PM
RE: Low 5v ref - by fixkick - 01-30-2021, 10:48 PM
RE: Low 5v ref - by fixkick - 01-31-2021, 12:37 AM
RE: Low 5v ref - by fixkick - 01-31-2021, 12:42 AM
RE: Low 5v ref - by fixkick - 01-31-2021, 12:49 AM
RE: Low 5v ref - by Yukonjay - 01-31-2021, 04:47 PM
RE: Low 5v ref - by Yukonjay - 02-09-2021, 05:45 AM
RE: Low 5v ref - by fixkick - 02-09-2021, 07:40 AM
RE: Low 5v ref - by fixkick - 02-09-2021, 07:42 AM
RE: Low 5v ref - by Yukonjay - 02-16-2021, 03:47 AM
RE: Low 5v ref - by Yukonjay - 02-12-2021, 08:25 AM
RE: Low 5v ref - by fixkick - 02-15-2021, 12:30 AM
RE: Low 5v ref - by Yukonjay - 02-12-2021, 08:32 AM
RE: Low 5v ref - by Yukonjay - 02-15-2021, 03:52 AM
RE: Low 5v ref - by fixkick - 02-15-2021, 08:02 AM
RE: Low 5v ref - by fixkick - 02-15-2021, 08:06 AM
RE: Low 5v ref - by Yukonjay - 02-16-2021, 05:16 AM
RE: Low 5v ref - by Yukonjay - 02-25-2021, 12:00 PM
RE: Low 5v ref - by fixkick - 02-27-2021, 12:11 AM

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