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I am comparing the PC app VCM Scanner vs Track Addict V 4.71 Pro.

The PC app reads Oil Pressure / Temp , But this is missing from Track Addict.

Engine GM Crate LS3 / 480. C3 corvette

When...

So I connected an oscilloscope to the ECM Tach output and found changing the setting from Frequency to Crank changed the signal from a PWM signal to a constant voltage ( no signal ) this doesn't...

I have a E67 ECM connected to my 78 factory tach.

First try this to see if you get any tach movement. My HP tuner on the engine tab has 3 options for tach serial / crank / frequency. Not sure...

ECU is detected as E67 GM LS3 480 crate motor. Current under the engine tab
I have the following options.
Type: Serial / crank / frequency
factory setting = frequency
high and low values...