mlx8

The Tech section suggested I move this post here...... so

Has anyone else successfully setup a G2xtreme GPS track data logger on their Rx8?

I've got one installed but haven't been able to successfull pick up or log the engine tach signal. From the installation guide,

"Engine RPM (tach input tips)
1. Signal requirement: 50% duty cycle, 5-18 volt square wave signal. This is typically the type of signal provided by an aftermarket ignition.
2. Late model vehicle tach signal: Depends upon the vehicle. Some have tach outputs that are compatible with the G2X. Related information can typically be found using an online search relevant to your vehicle.
3. GMR Sensor: The GMR sensor is the best option to obtain a tach signal for coilpak, coil on plug or diesel vehicles. Use of the GMR sensor requires a Power RPM Cable (Racepak PN: 680-CA-PWR-4P)....."

We've been using the GMR sensor, but does anyone know where to get the tach signal from the OBD II port or other source in the cabin?

2nd, what would be the setting for engine/tach pulses with a rotary. The default setting the unit comes with is for a V8. Per the manual's instructions, one is supposed to set the number of pulses from the tach signal for "two revolutions (4 stroke operation) .... this means typically the correct setting would match the number of engine cylinders, i.e. for a V8, set the G2X dash Pulse display to "8"

Any BT,DT with the rotary? My guess is ?? 6 based on 3 lobes, x 2 rotations. Bueller?

Thanks, mike

BTW searched, but didn't find any help in:
https://www.rx8club.com/showthread.ph...ignal+picku p
https://www.rx8club.com/showthread.ph...ignal+picku p

if there's some where else to look, let me know.