WB O2 testing

[bcroe at juno.com]

Run your heavy wires from battery to J3 & J4.  Then run 
lighter jumpers from J3 to J11, and J4 to J12.  

Your high impedance (10 meg) meter wires may be 
light gauge, but they should be routed DIRECTLY to 
J12 & J9.  If the meter ground wire is connected 
somewhere else on the vehicle, any voltage drop in
the power wiring will introduce error voltages in the
meter reading.  

A good check is from J12 to J9; this should read 
2.5 volts (any time power is applied).  If this is off, 
all readings will be off a similar amount.

Bruce Roe

On Wed, 9 Jan 2002 19:08:27 -0800 "Crescent Kao" <crescentkao at attbi.com>
writes:
> Almost forgot.. one more thing, on the DIY website, it states that if 
> you want to power the heater circuit and the EUGO from the same 
> source, then to run power to the heater first and then run a 22g 
> wire to the EUGO. Just to clarify, would it be acceptible to run 
> power and ground to J3 and J4 respectively, and then run a 22g wire 
> from J3 to J11? Or am I way off?

> PS: would a single ground at J12 suffice for the EUGO circuit? or do 
> i need a ground for the Vout and another seperate ground as shown in 
> the completed circuit picture on the DIY webpage.

> Thanks.

> Crescent Kao

----- End of forwarded message from owner-diy_efi at diy-efi.org -----
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