P0299 Diagnostic Trouble Code Discussion for August 2026
Turbocharger Engine Underboost
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| Help Request | Posted | |
| 2019 Hyundai Veloster Turbo R-Spec 1.6L MIL Lamp on, No turbo boost VIN: KMHTH6AB5K P0299: Turbo Underboost. We tested the recirculation valve and above 2,000 rpms is was bleeding pressure off through the hose that goes to the air cleaner box.The customer thought is was under warranty and took it back to the dealer.There diagnosis was the same as ours but said it... |
August 04, 2026 |
