Engine Performance (A8)Question 105 of 120
The throttle position sensor (TPS) informs the PCM about:
a.Exhaust temperature
b.Throttle plate angle (driver demand)
c.Coolant level
d.Battery voltage
Explanation
The TPS reports how far the throttle is open so the PCM can adjust fuel, timing, and transmission strategy. A faulty or dead-spot TPS causes hesitation, surging, or erratic shifts. Its signal is checked with a scan tool or by watching voltage sweep.
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