Service Repair

Audi Says It's Not a Throttle Body Glitch

Oct. 29, 2020

This bulletin applies to 2018 Audi A3 and 2019-2020 A3, Q3 and TT vehicles. One of the following DTCs may be stored in the engine control module (ECM): P050A00 (cold start idle air control system performance) and/or P050700 (idle speed too high).

Information courtesy of Mitchell 1

Mike Mavrigian

On some vehicles, it is possible that the throttle body is unable to lower the engine idle during catalyst warm-up. This is caused by incorrect basic settings for the throttle body stored in the ECM, not due to a product defect.

Erase the DTC(s) stored in the ECM, J623 (address word 0001). Using Guided Fault Finding, perform the text plan for throttle body adaption.

Do not replace the throttle body.

About the Author

Information courtesy of Mitchell 1

Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.

About the Author

Mike Mavrigian | Motor Age Editor

Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.