Digital Input - Frequency + Compensation?

[Carlos Iglesias]

Setup: M4 (with all options enables) in a turbo-rotary (13B-REW) running E85

I'm planing on installing a GM (Flex-Fuel) Fuel Composition Sensor in my M4 installation to monitor the Ethanol ratio in the fuel. The sensor's output is a 0 to 170hz signal. If I read it the signal into "Digitial 2" (Digital 1 alocated to the TC Mux), are there any compensation table I can effect, or am I strickly limited to logging the data?

Many Thanks,
Carlos
Monterey, California

[injectordynamics]

Use the second load table with the Y axis being frequency input. You will have to use dig in 2.

Set the calc method to 7, the table mode to 1 for percent, and the axis mode to either 0 or 1. It doesn't matter since you only need a 2D table and your values will be the same across the x axis anyway.

[Carlos Iglesias]

Thanks InjectorDynamics, for the insightful and prompt reply. You're really John-on-the-Spot when it has comes to fuel injection questions, either here or on some of the other EFI forums!