[Diy_efi] WB02 not passing tests completely

[rob files]

Hi BobR,

What is the significance of these time specs?  Which components influence?  
>From the test procedures and from inspection of the circuit, it appears to 
be controlled by C10, R18 and R34.  I have verified the resistors, and C10 
is the big ass capacitor, so that one is hard to get wrong.  Maybe I have 
short on one of my traces...

Still I would like to understand a little better what these tests validate 
and what the slow ramp times would mean to the operation of the WB sesor.

Thanks for the help,
Rob

From: rr <RRauscher at nni.com>
>Reply-To: Diy_efi at diy-efi.org
>To: Diy_efi at diy-efi.org
>Subject: Re: [Diy_efi] WB02 not passing tests completely
>Date: Thu, 23 May 2002 16:27:25 -0400
>
>That doesn't sound right. If it is truely twice as long I'd look for
>a resistor(s)/capacitors(s) that are mis-placed. Remember
>that these time factors are +- 10% due to the available components.
>
>BobR.
>
>
>
>rob files wrote:
>
> > Hi all,
> >
> > For steps #34 and #42 there are time constants given.  For both tests, 
>my
> > board takes roughly twice as long as specified.  Is this a problem, and 
>if
> > so, where should I look?
> >
> > It passes all other tests with flying colors.
> >
> > Thanks,
> > Rob
> >
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