Fiero L4-151 2.5L (1985)
Throttle Position Sensor: Adjustments
1985-88 Exc. 1985 V6 Engine
On 1985-88 4 cylinder engines and 1986 V6 engines, the Throttle Position Sensor (TPS) does not require adjustment. The ECM reads the
TPS voltage at idle for the zero reading, therefore, no adjustment is necessary.
