Adding a soldering iron to my on-board tool kit, thanks to you sharing your adventure!

-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Alistair Bell Sent: Wednesday, April 1, 2020 1:15 PM To: vanagon@GERRY.VANAGON.COM Subject: Re: Update Re: Engine died, March 31 update and maybe ecu smoking gun?

Yes the strange times did add a dimension to the event.

But golly, was so lucky to breakdown within pushing distance of work, and it wasn’t somewhere else.

God forbid it happened on a logging road.

Alistair

> On Apr 1, 2020, at 10:05 AM, Steven Johnson <sjohnso2000@gmail.com> wrote: > > 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 >>>>>>> >>>>>>>>> >>> >>