WARNING: This page is about a different car, the 1991 Mitsubishi 3000GT. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: DTC 43: EGR Temperature Sensor - Calif. Only (1 Of 2)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Fig 2: DTC 43: EGR Temperature Sensor - Calif. Only (2 Of 2)