Where did you source your new sensor and shift motor from? OEM or Amazon/eBay? If the latter then replace with OEM or used, known good OEM.
Another possible cause (as goober stated) could be the battery quality. How old is it? Is it charged? What does the voltage read?
It would need to be 12.4 volts or above to be considered a 'good' battery.
Another possible cause (as goober stated) could be the battery quality. How old is it? Is it charged? What does the voltage read?
It would need to be 12.4 volts or above to be considered a 'good' battery.