LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volkswagen >> 1997 >> Passat TDI, 4D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Adjustments - 1.9L >> Throttle Position (TP) Sensor >> Throttle Position (TP) Sensor Adjustment
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Throttle Position (TP) Sensor Adjustment

  1. Connect Scan Tester (VAG 1551) to Data Link Connector (DLC), located under tachometer. Turn ignition on. Operate scan tester and select RAPID DATA TRANSFER, ENGINE ELECTRONICS, then READ TEST VALUE BLOCK functions.
  2. Press "0" and "8" buttons to select READ MEASURING VALUE BLOCK function. Press "Q" button to enter input. Press "0" and "2" buttons to select DISPLAY GROUP NUMBER 02 function. Press "Q" button to enter input.
  3. DO NOT press accelerator pedal. Check TP display in 2 channel. Reading should be 0.0. Slowly open throttle, while observing display in channel 2, until throttle is wide open. Reading on display must increase uniformly from 0.0 at closed throttle to 100 at wide open throttle, without interruption.
  4. If readings are correct, press right arrow button. Press "0" and "6" to select ENDING OUTPUT function. Press "Q" button to enter input. If readings are incorrect, adjust accelerator pedal by turning accelerator pedal adjustment screw. Retest TP sensor. If readings are not corrected by adjustment, check TP sensor circuit or replace TP sensor as necessary.
scientia non olet · About LEMON Manuals