Where is the crank sensors located on 1999 Nissan maxima?

There are two crankshaft sensors on 1995 and later models

The crankshaft position sensor (REF) is mounted at the front of the engine on the aluminum oil pan section below the crankshaft pulley

The crankshaft position sensor (POS) is mounted on the aluminum oil pan section at the rear of the engine near the transaxle bellhousing