w211 p0299

  1. M

    W211 getting p0299 error code on high speed only

    hey, i have a w211 E220 CDI the car was doing great but later on an error code come out which is p0471 and after that i receive another code p0299 i went to change the exhaust back pressure sensor and the error code "p0471" gone and never come back but still getting the p0299 code i only get...
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