Date: Wed, 21 Mar 2012 18:54:53 -0700
Reply-To: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Subject: Re: [Syncro] Need 2.1 WBX ECU in the bay area
In-Reply-To: <CAEhEKRDT=eWzPsBSS_WXoq4JUb1uPQ2yibPoAFxcPp_YptnQtQ@mail.gmail.com>
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hi..
that all makes sense.
I have read where ecu nerds say the chips and circuitry never fail..
just the solder joints.
so ..could be.
Our own David B has posted magnified close-ups of such.
I think more of Air Flow meter ..
( but i also find the idle switchers not making contact at idle all the
time..
and timing too advanced,
dead oxygen sensors, intake leaks ..
exhaust leaks near an oxygen sensor ..all kinds of stuff.
Wonky Temp Sensor II also. )
I just had a 1.9 wbxr that would be 'very flat' for power..
especially like after sitting for traffic to go by ..
when it's time to go ...
extremely week.
I even got it to kinda stutter continuously in 2nd gear at like 3,500+ rpm..
shift up and it would go properly ..
a good used Air flow meter fixed that for sure.
one of my rules is ..
Anywhere there is a meeting of electrons and something physical that moves..
that's a weak spot. Like the sweeper arm in the AFM on the circuit there.
Scott
www.turbovans.com
On 3/21/2012 2:35 PM, Thomas Wilsher wrote:
> The symptoms I'm seeing right now is that the van is hesitating when it
> gets up to about 4000 rpm (sometimes even before that, particularly when
> letting up on the gas). The reason I wanted to try a different ECU was for
> two reasons:
>
> * Other threads I've looked at in the archives suggest trying a known good
> ECU up front, since it's an easy swap
> * I had the exact same symptoms a few years ago, and it turned out to be
> the ECU. Putting in a different (used) ECU completely took carte of it.
>
> I never opened up that bad ECU, but suspect it was a case of cracked solder
> joints, which apparently is a common problem with these ECU -- there's
> quite a bit about that as well in the archives, including some great
> instructions on how to reflow the bad solder joints. Right now I'm assuming
> that my current ECU has suffered the same fate.
>
> --Thomas
>
>
>
> On Wed, Mar 21, 2012 at 13:42, Scott Daniel - Turbovans<
> scottdaniel@turbovans.com> wrote:
>
>> fwiw ..
>> it's rarely the ecu.
>> and of course, it's good to have a known good spare.
>>
>> the only failure mode I've ever seen in one is it just won't work, and
>> that's quite rare.
>> I hope you find one to try.
>>
>> a guy local to me bought a known good one off me..
>> I even ran it for him in another van ..
>> then he calls and he wants to borrow my 'this unit' and my 'that unit' for
>> testing purposes ..
>> sure.
>> they can be tricky to sort though ..
>> what are your simptoms,
>> and did you try with oxygen sensor disconnected ?
>>
>> scott
>>
>> On 3/21/2012 10:34 AM, tw67syncro@gmail.com wrote:
>>
>>
>>
>> I'm experiencing some driveability issues with my '87 Vanagon and need
>> to test it with a known good ECU. Anyone in the SF Bay Area that have
>> a known good 2.1 WBX ECU that I could borrow for a couple of days? I
>> have another one coming my way, but it looks like it will be a few
>> days, and since that one is used I'm frankly not 100% sure whether it
>> is good or not.
>>
>> Thanks,
>> Thomas
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