Fiero L4-151 2.5L (1985)
Throttle Position Sensor: All Technical Service Bulletins
Engine Controls - TPS Is Not Adjustable
Number 85-6(Gasoline)-6
Date 12/84
Subject:
THROTTLE POSITION SENSOR IS NOT ADJUSTABLE FOR 1983-85 2.5L-TBI (ENGINE CODES 2, R AND U) AND 1982-85 1.8L-TBI (ENGINE CODES O, J)
Throttle Position Sensors are non-adjustable on 2.5L-TBI (Engine Codes 2, R, U) and 1.8L-TBI (Engine Codes O, J). No attempt (bending, etc.) should
be made to adjust Throttle Position Sensors on subject engines. Throttle Position Sensors that do not meet specifications should be replaced. The TPS
on the 1982 2.5L engine is adjustable.
Labor Operation J6357 will no longer be valid for Engine Codes O, J, R, U, and 2.
