Dead transistors on Vems?

[PaulsM]

Hello.
I use Vems ecu for my project.
Got home after long test run, everything was fine.
In the morning car won`t start - no spark.
I use m52 ignition coils, there is +12v to them.
I opened Vems case and saw that there are 18 transistors, probably 8 for sequential injectors, 8 for sequential ignition coils and 2 extra, right?



I took a multimeter un put it on restistance measuring.
As I can remember 10 out 18 transistors showed me around 11 kohm.
8 transistors showed me nothing. I tried to measure them inbetween three transistor legs in all possible variations and it didn`t show anything. So, I have 8 dead transistors?

I had one bad grounding on ECU, could it done damage?
I hope You can help me with answers, paid a lot for this ecu and have used it for a few months..


Can vems see it as error? Where could I look on Vemstune?

If there is a problem with grounding or spark pligs, spark wires etc., could Vems disable spark signal?

[PaulsM]

So, car started, actually grounding is ok. My question is - on what conditions it can turn off ignition? Why there were no signal? Even in test mode, no signal coming out..

[PaulsM]

Hello again. So problem appeares again. No spark even in test mode. Nothing was done, just no spark day after driving car. Coils get +12v from 15 line and  Vems wont give any - mass to coil. Anyone?

[gunni]

Do you have a log of it cranking currently showing rpm and no trigger errors?

All ignition outputs failing at the same time I haven´t seen before.

[Kamuto]

are you driving something from stepper outputs? and as I it's somebody in latvia who assembled ecu