Re: Need help designing an automotive engine run detector.

On Mon, 15 Oct 2007 08:43:46 -0700, Gerbermultit00l wrote:
....
I've done this. The problem I see is signal levels and consistency
from one vehicle to another. For instance, in my vehicle a 300mV
pulse is generated every time a plug fires. The pulse is just over a
nanosecond wide. The noise floor from all kinds of other crud on the
power buss is about 50 to 100mV. Longer wire runs (away from the
battery) only increased signal level marginally.

Connect it to the oil pressure idiot light.

Good Luck!
Rich


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