× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P050B Diagnostic Trouble Code Discussion for May 2017

Cold Start Ignition Timing Performance


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P050B
Help Request Posted
2009 Audi A4 2.0L No Start, Misfire, MIL Lamp on VIN: WAUJF78K59
P050B: Cold start idle air control system performance. The car came in with misfire codes and oil pressure codes. I replaced the oil separator and changed oil. Drove the car for a day and returned it to the customer. A few days later the car would not start. Cleared the codes and car starts and runs fine. Customer...
May 03, 2017
2009 Audi A4 2.0L No Start, Misfire, MIL Lamp on VIN: WAUJF78K59
P050B: Cold start idle air control system performance. The car came in with misfire codes and oil pressure codes. I replaced the oil separator and changed oil. Drove the car for a day and returned it to the customer. A few days later the car would not start. Cleared the codes and car starts and runs fine. Customer...
May 25, 2017