Hello everyone I am a newcomer to your site and are wondering if anyone has an answer to my query.
I am running a LS1 and auto in my AC Cobra replica and need to install the power/economy function. My tuner is going to have two different shift patterns one for everyday and one for racing.
My question is and I opologise if it is one that has been answered dozens of times, is the pwr/econ input to the ECU a positive input or a grounded input?

Any help would be great