[Diy_efi] Need help with diy-wb, Vout = 2.48v in free air

[Brian]

Hello,
	Mine does a very similar thing... (I built the Aussie version of this
kit).  My Vout never fluctuates from about 2.55 V, but my sensor does
heat up OK it seems.  Is this a bad sensor or a bad board?  I did run my
sensor in the car for about 30 minutes when it might not have been hot
because I didn't fully understand that it needed to be warmed up with
the internal heater... could this have fried my sensor?

	I have a schematic with my measured voltages at:

http://www.zeroglabs.com/rx7/images/schem.notes.jpg

My measured voltages are in GREEN, while the target voltages are in RED.

If any electronics whizzes would be willing to spend a few minutes
looking, I'd sure be grateful!  As of now, my DIY kit is on the shelf...
:( :(

Regards,
Brian 





alain at fbsims.com wrote:
> 
> Hi all, I just finished putting together the pcb and completed all of the tests
> and all passed ok.
> 
> When I applied power to both the heater and UEGO circuits, Vout measured
> 2.48 volts, and when the LED came on, Vout was still the same. Could my
> o2 sensor be shot??
> 
> Also, the o2 sensor does get hot, so atleast the heater ciruit is working.
> 
> Anyone have a clue as to what could be wrong??
> 
> Thanks
> Alain
> 
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