2000 Kia Sephia Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Ignition Coil Resistance

  1. Disconnect ignition coil connector. Using ohmmeter, check primary resistance between positive (+) and negative (-) terminal of coil. If reading is not .45-.55 ohm at 68Β°F (20Β°C), replace ignition coil. If reading is .45-.55 ohm, go to next step.
  2. Check secondary resistance between coil towers for cylinders No. 2 and 3. See Fig 1. Check resistance between coil towers for cylinders No. 1 and No. 4. If any reading is not 13,000-15,000 ohms at 68Β°F (20Β°C), replace ignition coil. If both readings are 13,000-15,000 ohms, coil is okay.
Fig 1: Checking Secondary Coil Resistance
G97E05165Courtesy of KIA MOTORS AMERICA, INC.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.