Thomas

        Sounds like it might be a good time to open up that old one to see if

you can find any obvious issues with it & fix it if you can & then  
swap it in

to see if things change.

                                                        ORR ~ DeanB

On 21 Mar , 2012, at 3:35 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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