P0352 on Kia: How to Diagnose & Fix
Ignition Coil B Primary/Secondary Circuit Malfunction
1 Kia model · 1 documented issue · $120-$600 repair
P0352 on Kia by model: symptoms, diagnosis and fix
Across both generations of Rio, owners frequently report ignition-related misfires caused by failing coil packs, deteriorated plug wires on earlier cars, or worn spark plugs. The problem typically shows up as rough idle, hesitation under load, flashing MIL, and poor fuel economy. It is common enough in owner complaints and repair forums to be considered a recurring Rio issue, especially as these cars age.
Common Symptoms
- check engine light
- flashing MIL
- rough idle
- hesitation on acceleration
- engine shaking
- poor fuel economy
How to Fix
Scan for cylinder-specific misfire codes, inspect plugs for wear or oil fouling, and test or swap coils to isolate the fault. On early models, replace aged plug wires along with plugs; on later coil-on-plug setups, replace the failed coil and inspect the connector for corrosion. If misfires persist, check for vacuum leaks and compression issues before replacing more parts.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- A-Premium APIC1312 ignition coil, plug and wire kitOEMA-Premium APIC1312 / PartsGeek 655-03080396
Replace diagnosed worn early-generation coil/wires and plugs as a matched service kit Fitment/availability: 2001-2002 Kia Rio 1.5L Base/Cinco/RX-V and 2003-2005 Rio 1.6L Base/Cinco/RX-V as listed; 5-blade early waste-spark branch only. N…
- Genuine Kia 27301-26640 ignition coilOEMKia 27301-26640
Confirm the 2005 body transition and VIN.
- Genuine Kia 18823-11101 spark plugOEMKia 18823-11101
Replace worn or fouled spark plugs as a four-plug set on the later engine branch Fitment/availability: 2006-2011 Kia Rio/Rio5 1.6L Alpha DOHC; sold individually, order four. Confirm VIN and service-manual plug specification/gap.
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Owner tips & cautions
- TipUse dielectric grease sparingly in coil boots and inspect for oil in plug wells before installing new parts.
P0352 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0352 mean on a Kia?
P0352 stands for "Ignition Coil B Primary/Secondary Circuit Malfunction." This is an ignition/engine code. Each ignition coil takes the car's low battery voltage and steps it up into the high-voltage spark that fires a spark plug. P0352 means the engine computer detected a problem in the primary or secondary circuit of ignition coil 'B' — it isn't getting the proper electrical signal back when the coil is commanded to fire. This often causes a misfire, rough running, hesitation or reduced power, and if left unaddressed can lead to unburned fuel damaging the catalytic converter. On Kia it is documented across 1 model: Rio.
What are the most common causes of P0352?
The most common causes of P0352 are: Failed ignition coil 'B', Damaged wiring or corroded connector at the coil, Open or short in the coil primary/secondary circuit, Worn or fouled spark plug increasing coil stress, Poor power or ground supply to the coil, Faulty ignition control circuit/driver in the ECM (less common). The specific cause varies by vehicle.
How much does it cost to fix P0352 on a Kia?
Published repair estimates on Kia range from $120 to $600 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0352 on a different make?
View P0352 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.