S10/T10 Blazer 4WD V6-262 4.3L VIN W CPI (1992)
Throttle Position Sensor: Electrical Specifications
The throttle position sensor is not adjustable on this engine but should read below 1.25 volts at closed throttle and about 4.5 volts at wide open
throttle.
Idle
Normal
0.45 to 0.95 V
Maximum
1.25 V
Wide Open Throttle
4.0 to 4.5 V