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Severity: ModerateKia

P0302 on Kia Vehicles: Cylinder 2 Misfire Detected

Cylinder 2 keeps misfiring. On inline engines it's a middle cylinder, so rule out coolant getting in. P0302 →

16Complaints mentioning the code
#6Rank among 15 brands
2.6%Share of Kia DTC complaints

In NHTSA owner complaints we analyzed for Kia, P0302 was mentioned 16 times.

Most mentioned models

Kia Sorento4
Kia Soul Ev4
Kia Sedona3
Kia Soul3
Kia Optima1
Kia Sportage1

Model years mentioned

Model years mentioned – Kia P0302113414115716117218
2013: 1 · 2014: 4 · 2015: 1 · 2016: 7 · 2017: 1 · 2018: 2

Components named in these complaints

  • Engine (14)
  • Unknown Or Other (3)
  • Fuel/propulsion System (3)
  • Electrical System (1)
  • Power Train (1)

Reports with a crash: 0 · fire: 0 · injuries: 1

Often appears together with

Possible causes

  1. Failing ignition coil or cracked boot on cylinder 2, or a shared 2/3 coil on wasted-spark systems28%
  2. Worn, cracked or fouled cylinder 2 spark plug26%
  3. Clogged or leaking cylinder 2 fuel injector14%
  4. Coolant seeping into cylinder 2 through a leaking head gasket or cracked head, especially if P0303 is also set12%

P0302: Diagnosis step by step →

Related codes

Source: NHTSA Complaints API (US government open data), analyzed by DTC mention.