Bravo!  Congratulations!  And thanks for giving me something to look
forward to reading
during these strange times....

Steven
91 Westy

On Tue, Mar 31, 2020 at 5:38 PM Alistair Bell <albell@shaw.ca> wrote:

> I want that tee shirt :-)
>
> Ab
>
> > On Mar 31, 2020, at 5:21 PM, stuartmacm@gmail.com wrote:
> >
> > Congrats Alistair! You fixed you Vanagon with a soldering iron!  I bet
> that's what ECU rebuilders do.
> >
> > -----Original Message-----
> > From: Vanagon Mailing List <vanagon@gerry.vanagon.com> On Behalf Of
> Alistair Bell
> > Sent: Tuesday, March 31, 2020 5:17 PM
> > To: vanagon@GERRY.VANAGON.COM
> > Subject: Re: Update Re: Engine died, March 31 update and maybe ecu
> smoking gun?
> >
> > It worked!
> >
> > Thank you very much mark for all your help.
> >
> > Alistair
> >
> >>> On Mar 31, 2020, at 5:04 PM, vw_van_fan_Mark <madvws@cox.net> wrote:
> >>>
> >>> No, bottom left is pin 25.
> >>> Pin 25 is the ignition coil trigger from it's driver transistor.
> >>> That check mark for the middle pin of the transistor appears to show
> that your bad solder joint is for the pin 25 signal as hoped.
> >>>
> >>> Mark
> >>>
> >>> Alistair Bell wrote:
> >>> Ok, did that.
> >>>
> >>> And apologies for the confusing way I noted results.
> >>>
> >>> The board tested in orientation shown, the red tape and black marks
> >>> refer to the pin orientation and results.
> >>>
> >>> From pin mark outwards, too and bottom, check mark means continuity,
> >>> check plus asterisk means brief continuity. Dash mark means no
> continuity.
> >>>
> >>> Started with transistor leg on right. Marks on tape closest to pin
> >>> marks. Working ext was middle leg, and finally left leg.
> >>>
> >>> I think, if I’ve rotated things in my head correctly, the pin marks
> >>> are too left 13, top right 1 Bottom left 14 , bottom right 25
> >>>
> >>> If that’s right, nine of your suggested pins have continuity to any
> >>> of the legs of the trans.
> >>>
> >>> https://shufti.files.wordpress.com/2020/03/3e721a30-3d1c-42e2-9f2a-19
> >>> 2eb14ad5a1.jpeg
> >>>
> >>>
> >>> The transistor as I measured, right leg first, then middle then left
> >>>
> >>> https://shufti.files.wordpress.com/2020/03/cb7b8634-ac9f-4345-b857-3a
> >>> 8a061a9e54.jpeg
> >>>
> >>>
> >>> Ab
> >>>
> >>>
> >>>
> >>>
> >>>>> On Mar 31, 2020, at 4:17 PM, vw_van_fan_Mark <madvws@cox.net> wrote:
> >>>>
> >>>> For fun you could use an Ohm meter to see if that transistor
> >>>> connects to the ECU pin that drives the ignition coil.
> >>>> Put a meter probe on each of the three legs in turn and test the ECU
> >>>> pin(s) with the other probe.
> >>>>
> >>>> I would look at ECU pins 25, 12 3
> >>>> to see if any leg of that transistor connects to any of those pins.
> >>>>
> >>>> The driver transistor for the fuel injectors is the one I'm used to
> >>>> seeing a bad connector at.
> >>>>
> >>>> Mark
> >>>>
> >>>> Alistair Bell wrote:
> >>>>> 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
> >>>>>
> >>>>>>>
> >
>