Jetta L4-1.9L DSL Turbo (AHU) (1999)
Throttle Position Sensor: Service and Repair
Throttle Position (TP) sensor, removing, installing, and adjusting
Special tools, testers and auxiliary items
VAG1551 or VAG1552 Scan Tool
VAG1551/3 adaptor cable
Box wrench e.g. Hazel 4561
Removing
Remove instrument panel and pedal cluster cover
Remove accelerator pedal -6-
Remove throttle position sensor -2- with bracket -3-, by removing both mounting nuts -8- with 1/4-in. drive tools.
Remove cable cam -4- and unscrew sensor from bracket.
Installing
Secure throttle position sensor to bracket
Attach cable cam to sensor
Check attachment to make sure that dimensions -a- and -b- are as specified when facing forward (arrow -c-)
a
= 22 ±0.05 mm (0.866 ±0.002 in)
b
= 41 ±0.05 mm (1.614 ±0.002 in)
Note:
The cable cam eye must be parallel to the forward direction
Install sensor with bracket
Install accelerator pedal cable and mount cable cam eye pin on accelerator pedal
Adjusting:
-
Connect VAG 1551/1552 Scan Tool
-
Switch ignition on
-
Press -0- and -1- buttons to insert "engine electronics" address word 01
Display will appear as shown: