I installed a factory Continental on a Mooney Acclaim with G1000. No matter what I do, I am unable to get an RPM indication. The orginal tach sensor went back with the core, but the new engine came with a new tach sensor. It is a different part number than the original one so this may be the issue. The original one was 0406-004 according to the Mooney build sheet. The sensor that came on the new engine was 658617-2. I am getting 10 volts out of the G1000 and if I put 1.5 volts on the sense wire I can get the rpm gauge to move. I think it's either the wrong tach sensor or a bad sensor from the factory. Garmin, Mooney, and Continental have been no help. Has anyone ran into this.
Thanks,
Josh
