[Diy_efi] Knock Detection using GM ESC Module

[marko.cosic]

> Can you step the resolution up some?.

Bruce/Bobby - as requested:
http://homepage.ntlworld.com/marko.cosic/misc/plug2.jpg

However, as you can see, they've changed somewhat in the meantime - cam out
as left, very gnetle brush (black was very loose) and as on the right.

Inbetween I started and ran for perhaps 2 mins in total with no backbox on
as it had missed, "popped" in the exjhaust and blown the baffls to puieces
and clogged. This included running with a resistor in place of the coolant
temp sender to force closed loop and normal mixture on the cold engine, and
pulling the vacuum line to the ECU and sucked on it to try check for a
problem (eninge revs stabalised again as vacuum went up, MAP sensor didn't
seem to 'leak'.

Suggestions?

(Bobby - standard shopping trolley engine not a racer, and running UK 95 RON
unleaded, probably equivalent to whatever you run an S-type Jag or 'Sterling
827 or Acura Legend on over the pond) No AFR meter or exhaust gas analyser
I'm afraid - just trying to troubeshoot an intermittent miss woithout
success. :(


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