Ford Fault Code

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P2302

Engine Misfire / Stumble Under Load

Variant 1

System

Ignition

Symptom

Engine Misfire / Stumble Under Load

Diagnosis & fix steps

LOGIC: Ignition Coil "A" Secondary Circuit Malfunction. ACTION: Swap the affected ignition coil to a different cylinder to see if the fault follows the hardware. Check for deteriorated wiring connector pins at the coil pack.

Red Seal field insights

Electrical Logic: The ignition driver in the PCM monitors the collapse of the primary coil field. If the secondary spark spike doesn't register properly, this circuit fault is flagged.

Variant 2

System

Ignition

Symptom

Engine Misfire / Stumble Under Load

Diagnosis & fix steps

LOGIC: Ignition Coil "A" Secondary Circuit Malfunction. ACTION: Swap the affected ignition coil to a different cylinder to see if the fault follows the hardware. Check for deteriorated wiring connector pins at the coil pack.

Red Seal field insights

Electrical Logic: The ignition driver in the PCM monitors the collapse of the primary coil field. If the secondary spark spike doesn't register properly, this circuit fault is flagged.

Same code keeps coming back?

That's a program problem, not a part problem. Book a 30-minute uptime review with Grant, a Red Seal Heavy Duty Technician.

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Read before you touch anything

  • This is general reference information, not a repair manual. It is for trained, qualified technicians.
  • Fault codes, meanings and procedures vary by model, serial number and software version. Confirm the code and the procedure against the manufacturer's service manual before acting.
  • Follow the OEM service manual, torque specs and your site's safety procedures: lockout/tagout, block raised equipment, relieve hydraulic, fuel and air pressure, and let hot systems cool.
  • You use this information at your own risk. Adventure Mechanical and AM Fleet Integrity accept no liability for damage, injury, downtime or loss arising from its use.
  • Not affiliated with or endorsed by any manufacturer. Brand names are used only to identify the equipment a code applies to.

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