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International Automotive Technicians Network

P0299 Diagnostic Trouble Code Discussion for June 2015

Turbocharger Engine Underboost


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Trouble Ticket Help Requests for DTC P0299
Help Request Posted
2008 Audi A4 2.0L MIL Lamp on VIN: WAUAF78E28
P0299: Boost Pressure Regulation. ... intake and found no vacuum leaks. We replaced the Cut Off valve (06H 145 710 D) for the Turbo,the diaphragm was filled with oil. We took the car out on a long drive and we have the same code returning (P0299)as a pending code so far. Does Adaptations need ...
June 17, 2015
2010 Audi A5 Quattro Cabriolet 2.0L MIL Lamp on VIN: WAUWFAFH8A
P0299: boost pressure regulation 237 control range not reached. Hi guys, last week changed the pcv oil separator on the valve cover due to excess vacuum in crankcase. All codes (10) except this code is gone. It's recurring, there is definitely a lack of power in the low end but once the revs pick up it seems to be have lot...
June 22, 2015
2006 Audi A4 Cabriolet 1.8L Hesitation, MIL Lamp on, VIN: WAUAC48H96
P0299: boost pressure regulation not reached. ... turn but the great people on iatn. this car runs ok but just feels sluggish when taking off from stop till rpm's come up 2200-2500 then you get boost 1500-1600 mbar and takes off like a bat out of ---. I have smoked tested for any leaks and none was found,...
June 23, 2015