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ECU, after transistors change...b8 y b17 no cut
#5
truck? huh?
tell me where the wire is, and what it connects to. or just the exact spot of the harness, !
there is no truck on any sidekick
a cargo area yes. and hood (bonnet in UK)
the ECU feeds a dash harness and up to the engine bay, harness. (im sure you mean that.)

the 2 transistors only blow, with injector is shorted. less that 0.8 ohms (0.8 to 1.2 ohms is spec, DC resistance) DMM readings.
the wires are shorted together or to ground or to the battery plus power feed of any kind.
that is it, assuming the are correct transistors and mounted to heat sink with thermal compound. (and tight, to said sink)
one way to save it is to add a 7 amp fuse to the RED injector wire, close to the ECU. (it runs like this but no person ever tried to do a short on purpose to prove this, not crazy enough yet)
this fuse will blow, telling you the injector feed wire is shorted, some way.

run new wires from ECU and injector.
then you know the wires are good.
use 18gage wire.
use a fuse.
some harness shorts are near impossible to find, ( I can find them, but I have a mag scope probe that lets me do that) {shows direction of short too}

good luck , and happy kicking.
http://www.fixkick.com
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RE: ECU, after transistors change...b8 y b17 no cut - by fixkick - 04-26-2014, 09:09 AM

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