Tacoma Extra Cab 4WD L4-2693cc 2.7L DOHC MFI (1997)
Engine RPM Sensor (NE signal): Component Tests and General Diagnostics
CRANKSHAFT POSITION SENSOR INSPECTION
NOTICE: "Cold" and "Hot" in these sentences express the temperature of the sensors themselves. "Cold" is from - 10°C (14°F) to 50°C (122°F) and
"Hot" is from 50°C (122°F) to 100°C (212°F).
INSPECT CRANKSHAFT POSITION SENSOR RESISTANCE
Using an ohmmeter, measure the resistance between terminals.
Resistance (NE+ and NE-):
Cold: 1,630 - 2,740 Ohms
Hot: 2,065 - 3,225 Ohms
If the resistance is not as specified, replace the crank shaft position sensor.