That black component that had the one leg solder joint broken is BUV37B Looked up and it’s , if I read it right, a power transistor. Alistair >> On Mar 31, 2020, at 2:41 PM, Alistair Bell <albell@shaw.ca> wrote: > Hi, > > Yesterday wasnt much success. Was planning on more but it poured ra= > in most of afternoon and I really didnt want to fool around in the wEt. > > Went into work at 5, got my work work going and then tried.... > > Timing light with trigger tie wrapped on, inductive lead around plug lead, etc. Crank and no flashing of light. > > Installed spare dizzy. Now I have now idea of hall sensor in this unit ok. BUt installed made no change, cranks and no timing light flash. > > I was getting pretty disheartened. Back to work and out by midnight . > > Today I got the ecu into the home workshop. And looked at it more carefully. > And I did find one bad solder connection. The pin does move in the joint when lightly probed. > > https://shufti.files.wordpress.com/2020/03/65892428-f4f0-4c98-b531-805319377126.jpeg > > It corresponds to the middle leg of this black square heat sunk component. > > https://shufti.files.wordpress.com/2020/03/2171ce8f-47d2-47f0-be1c-03f92115a95e.jpeg > > I will reflow the joint unless I hear back from you guys not to bother= > :-) > > Alistair |
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