editing a pid calc

[johnv]

Ok,,
I've just worked out a new error corrected slope and intercept for my wide band analog voltage output (LM1) new slope 1.994012
new intercept 9.943186

so how do I edit the PLX calc formular to correct this ?

[Blacky]

You should create a new PID in \My Documents\EFILive\V7\User configuration\calc_pids.txt, see attached calc_pids.txt file.
You can also set up your own system name (in this case O2-Wide-JV) so that your PIDs show up in their own section - making them easier to find.

[johnv]

Thanks Blacky,

PLX o volts = 10 afr
5 volts = 20 afr

I worked the slope and intercept out for this, am I correct in noteing that your calc is based on 0 = 10
5 = 30

so I just change the 30 to 20 in the calc ?

Cheers
John

[joecar]

In the calc_pids.txt, the 10 and 30 are the "Low" and "High" values used to set the low and high values on a chart y-axis or the low and high tickmarks on a gauge; they are for chart/gauge display only and do not affect the calculation as defined under the "Expression" column.

[johnv]

In the calc_pids.txt, the 10 and 30 are the "Low" and "High" values used to set the low and high values on a chart y-axis or the low and high tickmarks on a gauge; they are for chart/gauge display only and do not affect the calculation as defined under the "Expression" column.

OK thanks for clearing that up

[Blacky]

You should probably change the 30 to 20 since the chart will never display above 20.
Paul

[johnv]

You should probably change the 30 to 20 since the chart will never display above 20.
Paul

Done and all works great thanks Paul