ALFA ROMEO, CHRYSLER, DODGE, FIAT, JEEP, RAM
Reported code forms P0299
Engine Surge Feel and/or Diagnostic Trouble Code P0299 ? Turbo Underboost Condition After Updating The Powertrain Control Module (PCM) Software. (ETL, ETM, ETN Engines)
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P0299 · Manufacturer communications
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
RAM
Reported code forms P0299
Diagnostic Trouble Code (DTC) P0299 ? Turbocharger Underboost Additional Diagnostics