P1327 on Kia
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 Kia. For what P1327 means, the ranked causes and the test order, see the P1327 guide.
What's different on Kia
KiaYour car
2020–2021 · Soul
Supported by vehicle dataKia SC209Y gives engine long block replacement instructions when P1327 is present after the PNSS logic update; the 2021 Seltos is also covered. Kia recall 21V-259 for piston oil rings is related context but does not name P1327. The bulletin is on NHTSA, but whether it is still current is not verified, so it is labelled vehicle data rather than confirmed.
2021 · Seltos
Supported by vehicle dataOwners of 2021 Seltos report P1327 after the PNSS software, and one reports sudden power loss at highway speed with it. This comes from owner complaints to NHTSA that quote a shop or dealer readout, so it is labelled vehicle data rather than confirmed.
SC209Y_TSB_R2Status unverified
Engine replacement instructions for piston ring noise DTC P1327 (SC209Y)
2020–2021seltos, soul · issued · NHTSA 11001836
Subsequent repair action: engine replacement instructions for piston ring noise DTC P1327, revised with additional information. 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
- Kia SC209Y: engine replacement instructions for piston ring noise DTC P1327
- Kia SC209Y_TSB_R2: engine replacement instructions for piston ring noise DTC P1327 (revision 2)
- Kia recall 21V-259: 2020 Soul piston oil ring heat treatment
- NHTSA complaint 11720885: 2021 Kia Seltos, P1327 PNSS
- NHTSA complaint 11731229: 2021 Kia Seltos, P1327 loss of power
- Hyundai 22-01-043H: Campaign 974 knock sensor logic enhancement with Cylinder Noise Diagnostic System (CNDS)
- NHTSA complaint 11651114: 2020 Hyundai Kona, stall and P1327
- Last reviewed
- Written by
- Saurabh K.
- Editorial review
- Pending
- Technician review
- Technician review pending
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