Cool Thanks Legacy777. Yep that other Subie owner from Colorado had some multi issue's I guess. Since I've posted the check engine just came on, it's been about a week and 1/2 since issue started. My brothers think it's not the O2 sensor since it happens right away once load is established in reverse. I'll try the ECU reset, but if I could repeat Ed's question of how you might go about doing this?
Thanks again,
Monty