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303-07F Engine Ignition - 2.0L Duratec-RS (Zetec)|Specifications > < Ignition Coil Pack

Focus RS 2003 (09.2002-)

Engine Ignition - 2.0L Duratec-RS (Zetec) - Engine Ignition Focus RS 2003 (09/2002-)
Diagnosis and Testing

General Equipment
Worldwide Diagnostic System (WDS)

Inspection and Verification

  1. Verify the customer concern.
  1. Visually inspect for obvious signs of electrical damage.

Visual Inspection Chart

Electrical
  • Wiring harness
  • Electrical connector(s)
  • Spark plug(s)
  • Spark plug wire(s)
  • Ignition coil pack
  • Powertrain control module (PCM)
  1. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
  1. If the cause is not visually evident, verify the symptom and refer to the Symptom Chart.

Symptom Chart

Symptom Chart

Symptom Possible Sources Action
Engine misfire
*
Spark plug(s).
*
Spark plug wire(s).
*
CARRY OUT a KV test using WDS.
*
Ignition coil pack.
*
PCM.
*
PCM calibration.
*
REFER to WDS.
Engine stumbling
*
Spark plug(s).
*
Spark plug wire(s).
*
CARRY OUT a KV test using WDS.
*
Ignition coil pack.
*
PCM.
*
PCM calibration.
*
REFER to WDS.
Engine lacks power
*
Spark plug(s).
*
Spark plug wire(s).
*
CARRY OUT a KV test using WDS.
*
Ignition coil pack.
*
REFER to WDS.

303-07F Engine Ignition - 2.0L Duratec-RS (Zetec)|Specifications > < Ignition Coil Pack