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Old 04-05-2020, 06:10 PM   #5
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Location: Charleston
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Quote:
Originally Posted by outsidetheboxster View Post
I have a question about doing just the opposite.

My engine swap is using a stand alone ECU that has a 5V tach driver output. As I'm not using the factory ECU to make the engine run, can I back feed the 5 volt signal into the same OBD wire to make the tach in the dash work?

I'm aware of the Tach Adapt product but I still need to find out what wire or wires feed the tach itself. 01 Boxster S 6 speed. I have the Bentley manual and wiring diagram but my eyesight is just not that good anymore.....

Thanks for any thoughts!

I am leaving the factory ECU in tack so I can run all these little things like coolant temp yada yada. Might not be the "cleanest" solution but I think it should work.

If leaving the ECU in place doesn't work; I'm gonna follow this thread for a solution.
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