mr_W
NAXJA Forum User
- Location
- Belgrade, Serbia
I got BD912 (PNP) this morning, price was approx $1. Put it inside, crossed my fingers and spin it for test with inj. disconnected. Waveform looked great! Same as with original drivers.
Then I connected inj. and immediately noticed that engine is running with all 6 cylinders! Wheeee!!
Took it for a test drive - it drives like brand new Okay, not maybe as brand new, as I have tons of other issues, but it drives much much better with 6 cyls than with 5.
So to summarize, injector output driver, if blown, on RENIX ecu, can be replaced with BD912 or equivalent. It handles 100V, 15amps, and has hFE in 100-200 range (checked with meter, same as original). Note that 15amps is probably overkill, but it should not matter.
Here is table for driver - injector relation.
Q1 - inj. #4
Q2 - inj. #6
Q3 - inj. #5
Q4 - inj. #1
Q5 - inj. #3
Q6 - inj. #2
@5-90,
if you got some time to try, please check if your ecu can be fixed with this method also.
Thank you all for your suggestions, it wall all very helpful!
I'm reading now my first post, and there I made note about welding. Don't know what was I thinking I meant to say soldering. Have no clue about welding, unfortunately, yet.
Then I connected inj. and immediately noticed that engine is running with all 6 cylinders! Wheeee!!
Took it for a test drive - it drives like brand new Okay, not maybe as brand new, as I have tons of other issues, but it drives much much better with 6 cyls than with 5.
So to summarize, injector output driver, if blown, on RENIX ecu, can be replaced with BD912 or equivalent. It handles 100V, 15amps, and has hFE in 100-200 range (checked with meter, same as original). Note that 15amps is probably overkill, but it should not matter.
Here is table for driver - injector relation.
Q1 - inj. #4
Q2 - inj. #6
Q3 - inj. #5
Q4 - inj. #1
Q5 - inj. #3
Q6 - inj. #2
@5-90,
if you got some time to try, please check if your ecu can be fixed with this method also.
Thank you all for your suggestions, it wall all very helpful!
I'm reading now my first post, and there I made note about welding. Don't know what was I thinking I meant to say soldering. Have no clue about welding, unfortunately, yet.