Powertrain, generic (extended)

P219D Cylinder 2 Air-Fuel Ratio Imbalance

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modeNo

P219D singles out cylinder 2. On engines with two banks, whether cylinder 2 sits on bank 1 or bank 2 depends on the maker's numbering, which decides whether P219A or P219B may appear alongside. Bulletins show three very different outcomes. Kia replaced the high-pressure injector and its clip plus the high-pressure and crossover fuel pipes on 2022 Carnival models with the 3.5 GDI V6 when any of P219C to P21A1 had set. Hyundai fixed P219C to P219F on the 2018 Sonata 2.0 turbo with ECM and TCM software and noted that drivers feel nothing. Stellantis found a charge-air cooler with a loose crimp on the 2025 RAM 1500 3.0 Hurricane, which set P219D among other cylinder codes along with a whistling noise and reduced boost. A real cylinder 2 fault is confirmed with an injector balance test and a leak-down test.

Likely causes

Faulty high-pressure injector at cylinder 2 (direct injection)
Charge-air leak upsetting cylinder filling (e.g. RAM 3.0 Hurricane)
Detection logic corrected by software update (e.g. Hyundai Sonata 2.0T)
Compression loss at cylinder 2

Symptoms

  • Check engine light on
  • Often no driveability change
  • Reduced power or whistling noise if a charge-air leak is the cause

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€0–1,800
Time0.5–6 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

fuel injector

Related codes

P219AP219BP219CP219EP0302

References: static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov.