The Throttle Position Sensor (TPS) is part of the Fuel and Emission Control System. It has two major functions:
Most common signs of a TPS that needs adjustment is a rough idle or a hesitation problem during acceleration. Bad backfiring could also be caused by the TPS, but this can also be due to installation of an aftermarket free-flowing exhaust.
NOTE: There are two types of Throttle Position Sensors.
The Series 4 sensor is NOT interchangeable with the Series 5. The Series 4 ('86-'88) TII and NA sensors are interchangeable, but the Series 5 ('89-'91) TII and NA sensors are NOT interchangeable. However, they are adjusted exactly the same.
- TPS Tester (see Picture #1 below)
- Screw Driver
#1 TPS Tester #2 Diagnostics Connector #3 TPS Adjustment
NOTE: DO NOT use excessive pressure on the screw; this will cause incorrect adjustment
Printable PDF Version
If you would like to purchase a TPS Tester please click here.
Banzai Racing Inc. & Associates are not responsible for any adverse effects arising from application of this procedure.
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