Engine Speed vs Read Engine RPM

Questions and comments regarding the DiabloSport data logging tools.

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djalbin
Posts: 36
Joined: Sat Apr 23, 2016 4:47 am

Engine Speed vs Read Engine RPM

Post by djalbin »

DataViewer ver. 3.4.1.4

There are two PIDs in the Performance group that have RPM values in the logs.
One is "Engine Speed". The other is "Read Engine RPM".
RPM values for the two PIDs track close to each other in the logs ... but they're not identical.

What is the difference or significance between these two PIDs?
PID definition for Engine Speed is readily available in most references but Read Engine RPM does
not show up in the standard PID tables.

Thanks.
Don
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