Date: Wed, 1 Apr 2020 10:54:57 -0700
Reply-To: Alistair Bell <albell@SHAW.CA>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Alistair Bell <albell@SHAW.CA>
Subject: Re: Update Re: Engine died,
March 31 update and maybe ecu smoking gun?
In-Reply-To: <005601d6084c$e82cb8b0$b8862a10$@net>
Content-Type: text/plain; charset=utf-8
One of those new generation usb chargeable ones?
Ab
> On Apr 1, 2020, at 10:42 AM, Jack R <jack007@comcast.net> wrote:
>
> 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
>>>>>>>>
>>>>>>>>>>
>>>>
>>>
>
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