Hi all,
This is my first post and i hope i won't get flame for it :lol:
Short story:
I'm on progress of swapping toyota 1uzfe engine into FJ40.
It's basically done with a few minor glitches. Engine run ok with factory ecu, only minor error code flashes.
One of the glitches is fuel pump controller.
FC/FPR from ecu couldn't trip the fuel pump relay. While i can get away with it by getting trigger from ignition (always on fuel-pump mode), it will be better if i can make the ecu do it's job.
So i decided to open the ecu and trace the problematic pin backward.
Found out that the transistor controlling the ecu is broken.
Data i can get about the transistor:
- GA 62 printed on it
- NPN (diagram and transistor test using multimeter confirm this)
- SOT89 form factor
- Using multimeter, diode test on the BROKEN one shown the following : BC value is 0.841 and BE no value
- Using multimeter, diode test on the GOOD one (there are a few around the broken one) : BC and BE value are both 0.841
Picture below :
http://www.pixentral.com/show.php?picture=1BImWkS7dbywFLiOSkpwjtVchOukPY1
question:
- can i use other form factors/type transistor safely supposed the specs are within acceptable range / near the broken one spec ?
- If i can use other form factors, can someone help me with the replacement type/model ? A common type that can easily found in a small town electrical store preferred. Where i live there is no store selling sot89 transistor.
Note: I don't have any electronic background but have a strong logical thinking and have no problem playing around electronics and tools so please adjust the explanation to a language a mere mortal like me understand :lol: ...
Thank you in advanced for any help ...