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Diagnosis and Testing|Removal and Installation > < 303-07B Engine Ignition - 1.8L Duratec-HE (MI4)-2.0L Duratec-HE (MI4)|Specifications

C-MAX 2003.75 (06.2003-)

Engine Ignition - 1.8L Duratec-HE (MI4)/2.0L Duratec-HE (MI4) - Engine Ignition C-MAX 2003.75 (06/2003-)
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
  • Circuit(s)
  • Wiring harness
  • Electrical connector(s)
  • Spark plug(s)
  • Ignition coil-on-plug(s)
  • 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).
*
CARRY OUT a KV test using WDS.
*
Circuit(s)
*
Ignition coil-on-plug(s)
*
PCM.
*
PCM calibration.
*
REFER to WDS.
Engine stumbling
*
Spark plug(s).
*
CARRY OUT a KV test using WDS.
*
Circuit(s)
*
Ignition coil-on-plug(s)
*
PCM.
*
PCM calibration.
*
REFER to WDS.
Engine lacks power
*
Spark plug(s).
*
CARRY OUT a KV test using WDS.
*
Circuit(s)
*
Ignition coil-on-plug(s)
*
REFER to WDS.

Diagnosis and Testing|Removal and Installation > < 303-07B Engine Ignition - 1.8L Duratec-HE (MI4)-2.0L Duratec-HE (MI4)|Specifications