Question

1997 Acura TL 3.2L with engine code P1791, how can this problem be fixed?

Answer 1

P1791 VSS (vehicle speed sensor) range / performance

This code can also be set due to a open at the VSS or a short, and even the speed sensor itself, where a replacement may be required, especially if the speedometer is not operating correctly

Answer 2

P1791 ACURA Code - Vehicle Speed Sensor Range/Performance Problem
Read more: https://www.autocodes.com/p1791_acura.html