TPS Adjustment

NOTE: Ensure basic idle speed is set to specification before adjusting TPS. See BASIC IDLE SPEED under IDLE SPEED & MIXTURE. Perform all adjustments with engine at normal operating temperature, front wheels in straight-ahead position, cooling fan and all accessories off, and transmission in Park or Neutral.

TPS SPECIFICATIONS

Application

⁽¹⁾ Volts

Diamante (w/Traction Control)

.58-.69

Stealth, 3000GT

.4-1.0

⁽¹⁾

At idle.

Disconnect TPS connector. Using external ohmmeter, measure resistance between TPS terminals No. 3 and 4. See Fig 1 . Insert .256" (.65 mm) feeler gauge between fixed speed adjusting screw and throttle lever.
Loosen TPS mounting screws and rotate TPS fully counter-clockwise. Ensure there is continuity between terminals No. 3 and 4. Rotate TPS clockwise until there is no continuity and tighten screws. Install Test Harness (MB991348 ) between TPS and harness connector.
Turn ignition on. Using external voltmeter, measure TPS output voltage between terminals No. 2 and 4. See TPS SPECIFICATIONS table. If voltage is not within specification, check harness and sensor. See SYSTEM/COMPONENT TESTS article in this section.

Fig 1: Identifying TPS Connector
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.