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P0299 Diagnostic Trouble Code Discussion for August 2020

Turbocharger Engine Underboost


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Trouble Ticket Help Requests for DTC P0299
Help Request Posted
2015 Audi A5 Quattro Cabriolet 2.0L MIL Lamp on VIN: WAUMFAFH9F
P0299: Underboost. The car has a chronic P0299 underboost code. There are no vacuum leaks and common items have been changed. See above. The car runs fine but the code returns after 3-4 drive cycles. Fuel trim is ok and improved after vent valve was changed. Any help would b...
August 18, 2020
2015 Audi A5 Quattro Cabriolet 2.0L MIL Lamp on VIN: WAUMFAFH9F
P0299: Underboost. The car has a chronic P0299 underboost code. There are no vacuum leaks and common items have been changed. See above. The car runs fine but the code returns after 3-4 drive cycles. Fuel trim is ok and improved after vent valve was changed. Any help would b...
August 19, 2020
2016 Ford Escape SE 1.6L lack of power VIN: 1FMCU9GX3G
P0299: Turbo Under Boost Condition. ... to look at. Came in with a p0299 code and no power. I did the TSB to replace the wastegate solenoid. Used the Ford part. Did not change anything so I dug deeper and found that the turbo failed. Once the old turbo was off I found the turbine wheel on...
August 25, 2020
2016 Ford Escape SE 1.6L lack of power VIN: 1FMCU9GX3G
P0299: Turbo Under Boost Condition. ... to look at. Came in with a p0299 code and no power. I did the TSB to replace the wastegate solenoid. Used the Ford part. Did not change anything so I dug deeper and found that the turbo failed. Once the old turbo was off I found the turbine wheel on...
August 26, 2020