o2 meter

[Tony Cooper]

dnult wrote:
> 
> In addition Tony, this high impedance signal is very suseptable to
> ground currents from other things.  For example, (possible, but
> hypothecial) if you grounded to the frame, it is possible that every
> time you applied the brakes, the current from the brake lights would
> flow through the frame and disrupt the signal from the O2.
> 
> -dnult

Indeed, so much so that if the signal was not connected directly to the
battery ground, then the engine management could screw up the
readings.!!!!


TTFN
Tony
-- 
Sent By tony.cooper at virgin.net