Audi 80 Quiz
Digifant Injection System

Checking the throttle valve potentiometer

In this manual: Digifant 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

PROCEDURE

Disconnect the throttle position potentiometer connector.

Connect the ohmmeter to contacts 1 and 2.

Move the throttle valve while observing the ohmmeter. The resistance should change smoothly.
Left: The fuel injectors (arrow) are located on the right side of the cylinder head, in the intake manifold, as viewed in the direction of travel.

Test yourself

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