P1327 on Hyundai
Hyundai and Kia: the engine noise monitoring logic has detected piston ring or cylinder wall damage
Severity: Stop — don't drive this car
Hyundai and Kia set P1327 when their software detects piston ring or cylinder damage that can lead to severe engine damage, and Kia's repair is a replacement engine. Owners report stalling and sudden power loss with it. Stop driving normally and contact a dealer.
Need a tow? Find one near youThis page covers only what differs on Hyundai. For what P1327 means, the ranked causes and the test order, see the P1327 guide.
What's different on Hyundai
HyundaiYour car
2019–2021 · Kona · 2.0L Nu
Supported by vehicle dataHyundai 22-01-043H adds CNDS software to the 2.0L Nu engine in the Elantra, Kona and Veloster; P1327 sets with a blinking check engine light when cylinder damage is detected. Owners of 2020 Konas report dealers confirming P1327 and replacing the engine. The bulletin is on NHTSA, but whether it is still current is not verified, so it is labelled vehicle data rather than confirmed.
Where it is:Knock sensor on the engine block
22-01-043HStatus unverified
Knock sensor logic update with the Cylinder Noise Diagnostic System (CNDS)
2019–2021elantra, kona, veloster · issued · NHTSA 10213718
Service campaign to update knock sensor logic with CNDS software, which detects abnormal cylinder wall scuffing or engine block noise before severe engine damage. Only the NHTSA flat-file summary was reviewed, not the bulletin itself.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
22-EM-008HStatus unverified
Campaign 974: knock sensor logic update with CNDS
2019–2021elantra, kona, veloster · issued · NHTSA 10213724
Service campaign 974 to update knock sensor logic with CNDS software, the same campaign as 22-01-043H. Only the NHTSA flat-file summary was reviewed, not the bulletin itself.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
Sources and review
- Hyundai 22-01-043H: Campaign 974 knock sensor logic enhancement with Cylinder Noise Diagnostic System (CNDS)
- Hyundai 22-EM-008H: Campaign 974 knock sensor logic enhancement (CNDS)
- NHTSA complaint 11759509: 2020 Hyundai Kona, P1327 engine replacement
- Kia SC209Y: engine replacement instructions for piston ring noise DTC P1327
- NHTSA complaint 11651114: 2020 Hyundai Kona, stall and P1327
- NHTSA complaint 11731229: 2021 Kia Seltos, P1327 loss of power
- Last reviewed
- Written by
- Saurabh K.
- Editorial review
- Pending
- Technician review
- Technician review pending
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