Audi 80 Quiz
KE-III-Jetronic Injection System

Checking the throttle valve potentiometer

In this manual: KE-III-Jetronic Injection System
Technical Description — 39Engines — 41Exhaust System — 13Cooling System — 28Fuel tank and fuel pump — 12Air Filter and Intake Ducts — 13Mono-Motronic Injection System — 18Digifant Injection System — 19KE-III-Jetronic Injection System — 35MPI and MPFI Injection Systems — 32Clutch — 11Transmission and Driveline — 21Suspension and Steering — 33Brake System — 41Anti-lock brake system — 8Wheels and Tires — 13Body Electrical System — 35Ignition System — 24Lighting — 14Signaling Devices — 7Instruments and Auxiliary Equipment — 54Heating and Ventilation — 7Body Components — 18Troubleshooting — 6Specifications — 13
~1min read

Models with automatic transmission
TEST PROCEDURE

Disconnect the three-pin connector of the throttle position potentiometer.

For testing, connect the ohmmeter to terminals 1 and 2:
The reading should be 1.5 – 2.6 kΩ.

Now connect the ohmmeter to terminals 2 and 3:
The reading should be 0.75 – 1.3 kΩ.

Slowly open the throttle valve while the ohmmeter remains connected.

The resistance should increase to a maximum of 3.6 kΩ.

Note: the throttle valve potentiometer can be adjusted. However, afterwards a "basic adjustment" of the automatic transmission must be performed – a job for a workshop.

Test yourself

A quick Audi 80 quiz: every answer comes with an explanation and a link to the manual page.