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Dead transistors on Vems?

Started by PaulsM, March 26, 2017, 09:22:29 AM

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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..

Will Vemstune recognise it as error? Where can I find it?

Kamuto

btw, your vems does not look original or how to say that
Vems installer in Lithuania
[email protected]

gunni

So you had no spark on any of the coils?

Have you done a individual coil output test from ignition outputs visual?

Sprocket

Quote from: Kamuto on March 28, 2017, 10:45:14 AM
btw, your vems does not look original or how to say that

Looks like self build box................

kurt06

Have you figured out if that is not an original one?

Kamuto

Quote from: kurt06 on May 23, 2017, 05:14:34 AM
Have you figured out if that is not an original one?
that's truly not original one
Vems installer in Lithuania
[email protected]