06-08-2015, 07:23 AM
(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!
Didn't you know you were a tech.Got any old organ parts laying around (TDA1008's)?
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