Logs of individual cyl with O2+WB

[Peter Gargano]

Richard Wakeling wrote:
> 
> http://www.dickselectronics.cjb.net
>
> We have been modifying our DST (diagnostic scan tool) to take the WB
> signal and in the process have discovered that the good old single wire
> O2 is capable of reading individual cylinders. Please let me know what
> you think of the logs.

Very interesting Richard. What sensor/electronics are you using for your
WB measurements. I assume the O2 sensor is a standard GM/Bosch part?

You say, in the HTML, that ... 

> The engine at this point has a very bad miss and shows as a sudden lean
> spot due to a cylinder of air entering the exhaust at that moment.

I thought that if you get an IGN misfire, then you'd get a rich indication
rather than a lean reading, or am I missing something?

Peter.
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