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'91 ecu troubles
#7
(06-06-2015, 11:17 PM)fixkick Wrote: there are lots of parts in all ECU, any can go bad. Any !
what matters is what is common..... (in most cases)
caps are the all time #1 failure, 1989 to 1995,, never seen them fail after that.,(they changed brand makers.... is why)
the diodes only fail when folks hot wire the ECU, this is number 3 fail. IMO
number 2 fail is injector driver transistors. (open, shorted or weak or leaking....)
one other failure is that 1 of the 2 injector drivers is shorted, causing out of control injection.

Great info! Smile Didn't you know you were a tech.

Got any old organ parts laying around (TDA1008's)? Smile

My ECU saga way back:

My ECU blew up back in 2004, total dead car. After the incompetent dealer advised me I needed a fuel pump, I picked up one for $90, peeving them of the $300 they wanted to charge. Then they said oh it's the ECU, $1200-2000 new, or $650 rebuilt. I bought one over the internet, $200 overnight I think, peeved them again, but there went my car to running again. Found their wrench on my hood in the gap once home, should have kept it, but returned that when I went to complain about my belt slipping. I had had them change the belts while there
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Messages In This Thread
'91 ecu troubles - by Kirk - 06-05-2015, 04:55 PM
RE: '91 ecu troubles - by fixkick - 06-05-2015, 11:05 PM
RE: '91 ecu troubles - by Kirk - 06-08-2015, 04:28 AM
RE: '91 ecu troubles - by GeoHacker - 06-06-2015, 02:41 PM
RE: '91 ecu troubles - by fixkick - 06-06-2015, 11:17 PM
RE: '91 ecu troubles - by GeoHacker - 06-08-2015, 07:23 AM
RE: '91 ecu troubles - by fixkick - 06-08-2015, 04:39 AM
RE: '91 ecu troubles - by fixkick - 06-08-2015, 11:16 PM
RE: '91 ecu troubles - by greenfield54 - 09-26-2015, 09:15 PM
RE: '91 ecu troubles - by fixkick - 09-26-2015, 11:38 PM
RE: '91 ecu troubles - by greenfield54 - 09-27-2015, 08:26 PM
RE: '91 ecu troubles - by greenfield54 - 09-29-2015, 09:41 PM
RE: '91 ecu troubles - by greenfield54 - 10-01-2015, 07:50 PM
RE: '91 ecu troubles - by fixkick - 10-01-2015, 11:55 PM
RE: '91 ecu troubles - by greenfield54 - 10-02-2015, 09:40 PM
RE: '91 ecu troubles - by greenfield54 - 10-03-2015, 10:11 PM
RE: '91 ecu troubles - by fixkick - 10-03-2015, 10:57 PM
RE: '91 ecu troubles - by greenfield54 - 10-03-2015, 11:03 PM
RE: '91 ecu troubles - by fixkick - 10-03-2015, 11:15 PM
RE: '91 ecu troubles - by greenfield54 - 10-03-2015, 11:21 PM
RE: '91 ecu troubles - by fixkick - 10-03-2015, 11:36 PM
RE: '91 ecu troubles - by greenfield54 - 10-03-2015, 11:47 PM
RE: '91 ecu troubles - by fixkick - 10-03-2015, 11:54 PM
RE: '91 ecu troubles - by greenfield54 - 10-04-2015, 08:56 PM
RE: '91 ecu troubles - by fixkick - 10-04-2015, 11:42 PM
RE: '91 ecu troubles - by fixkick - 10-05-2015, 02:15 AM
RE: '91 ecu troubles - by greenfield54 - 10-05-2015, 09:42 PM
RE: '91 ecu troubles - by fixkick - 10-05-2015, 10:43 PM
RE: '91 ecu troubles - by greenfield54 - 10-06-2015, 09:01 PM
RE: '91 ecu troubles - by fixkick - 10-06-2015, 11:00 PM
RE: '91 ecu troubles - by greenfield54 - 10-07-2015, 06:41 PM
RE: '91 ecu troubles - by fixkick - 10-07-2015, 10:07 PM
RE: '91 ecu troubles - by fixkick - 10-07-2015, 11:11 PM
RE: '91 ecu troubles - by greenfield54 - 10-09-2015, 09:32 PM
RE: '91 ecu troubles - by fixkick - 10-09-2015, 10:04 PM
RE: '91 ecu troubles - by greenfield54 - 10-09-2015, 10:23 PM
RE: '91 ecu troubles - by fixkick - 10-09-2015, 11:19 PM
RE: '91 ecu troubles - by fixkick - 10-10-2015, 12:36 AM
RE: '91 ecu troubles - by greenfield54 - 10-10-2015, 01:10 PM
RE: '91 ecu troubles - by fixkick - 10-10-2015, 10:35 PM
RE: '91 ecu troubles - by greenfield54 - 10-16-2015, 09:08 PM
RE: '91 ecu troubles - by fixkick - 10-22-2015, 03:56 AM
RE: '91 ecu troubles - by greenfield54 - 10-22-2015, 09:20 PM
RE: '91 ecu troubles - by fixkick - 10-23-2015, 01:25 AM
RE: '91 ecu troubles - by greenfield54 - 10-24-2015, 09:03 PM
RE: '91 ecu troubles - by fixkick - 10-25-2015, 04:12 AM
RE: '91 ecu troubles - by greenfield54 - 10-26-2015, 09:16 PM
RE: '91 ecu troubles - by fixkick - 10-26-2015, 10:41 PM
RE: '91 ecu troubles - by greenfield54 - 10-27-2015, 09:29 PM
RE: '91 ecu troubles - by fixkick - 10-27-2015, 11:04 PM

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