Just finished 1st WB O2 need a little help

[A79coupe at aol.com]

Thanks Dave,

I was running it off of the car battery with the engine stopped.  My guess is that it is not at even 13v.  I will put my charger on it to be sure I have the correct voltage.

Thanks again

In a message dated Wed, 17 Oct 2001  9:04:18 PM Eastern Daylight Time, "David Chambers" <dave at racelec.co.uk> writes:

> I had similar problems with mine when I wasn't running it off a big enough
> power supply on the bench. With the LM1086 regulator you need at least 12.8
> volts @ 2Amps min input to get the heater to think it is warmed up enough.
> Using the Lm317 reg the voltage will be a fair bit higher. Maybe 13.8 - 14V.
> You need a well charged car battery or run it on the car with the engine
> running to get these sorts of voltages.
> If all the power stuff is ok then you need to check the resistors from the
> output of the heater regulator to the LM431 and the circuitry from their to
> the opt isolator.
> Dave
> 
> 
> ----- Original Message -----
> From: <A79coupe at aol.com>
> To: <diy_efi at diy-efi.org>
> Sent: Thursday, October 18, 2001 8:02 AM
> Subject: Just finished 1st WB O2 need a little help
> 
> 
> > Just trying out my WB O2, and I'm not having sucess.  The output to the
> > heater is right on at 10.37v 1.43A, the sensor gets hot as hell, but the
> LED
> > does not come on.  I reversed the leads of the LED, and still it does not
> > come on.
> >
> > Vout remains constant at 2.57v.
> >
> > Any ideas on how to fix?
> >
> > TIA
> >
> > Eric Anderson
> > --------------------------------------------------------------------------
> --
> > To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the
> quotes)
> > in the body of a message (not the subject) to majordomo at lists.diy-efi.org
> >
> 
> 
> ----------------------------------------------------------------------------
> To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes)
> in the body of a message (not the subject) to majordomo at lists.diy-efi.org


----------------------------------------------------------------------------
To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org