SUZUKI VITARA ECU

[fixkick]

very alien to me. this ECU, thanks for the photo ! my EPC lists that ECU as for the E34 Italy market. this alien, ecu uses the exact same injector as USA sidekicks 1991-95
find the injector pins (use a ohm meter set to low ohms, and beeper on for continuity checks) at the blue connector.

do you know what blue pins are injector pins?, and if it has 1 pin or 2 pins? wired to the injector directly? or just 1.
find that out. then trace the 1 pin or both to there respective transistors.

2SB1335 , is a PNP simple transistor. i dont think it's for any injector.
2SB2422, i can not find, it are you sure its correct number? is it really B242 ?



looking at your 1st photo, I can see the ?????? transistor trace (left) to the diode clamp D114? but does it also connect to that huge white resistor on the left?
see ???? see the E pin , emitter, does it wire to the 12vdc power pin?
if yes, try the 2SB1020 for ????? spot
key facts, 12vdc goes to which transistor. (of the pair wired to injector pins on blue connector)
and what does that large left resistor (white brick) go to.?
what we need to do first is find out which side of the injector blew up. low or high side.
the continuity test from blue pins (inj) to both transistors will disclose this fact. (its not hard to do )

cheers
Data:

here are some japan transistor prefixes.
2SA.... (PNP)
2SB.... (PNP, power)
2SC.... (NPN and NPN HF power)
2SD.... (NPN, power)
2SJ.... (P channel FET)