P1304 Acura Code – Random Misfire Detected in Cylinder Number 4

What are the possible causes of DTC P1304 Acura?

NOTE: The listed causes may not be a complete list of all potential problems, and there may be other causes.

  • Check primary and secondary ignition
  • Check the fuel system – Fuel pressure and injector
  • Check for vacuum leaks
  • Check the mechanical condition of the engine
  • Faulty spark voltage detection module

How to repair DTC P1304 Acura?

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins. Search for Acura P1304 questions and answers

What are the possible symptoms of code P1304 Acura?

  • Check engine light on (or soon-to-be maintenance required warning light)

What does Acura code P1304 mean?

Cylinder number 4, random misfires detected is the generic description for Acura code P1304, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have additional information about the Acura P1304 OBDII code.

P1304 BMW Code – Cylinder 4 Misfires

What are the possible causes of BMW DTC P1304?

NOTE: The causes listed may not be a complete list of all potential problems, and there may be other causes.

  • Faulty spark plug #4
  • Faulty ignition coil 4
  • Ignition coil 4 harness is open or shorted
  • Poor electrical connection in ignition coil 4 circuit

How to repair BMW DTC P1304?

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins. Search for BMW P1304 questions and answers:

What are the possible symptoms of BMW code P1304?

  • Engine light on (or service engine soon warning light)
  • Engine runs rough

What does BMW code P1304 mean?

Cylinder 4 Misfire is the generic description for BMW code P1304, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have further information about BMW OBDII code P1304.

P1304 Ford Code – High EGR Calibration

📩 Diagnosis and Solutions for Ford DTC P1304

🔧 Recommended Diagnostic Steps:

  1. Check possible causes listed above.
  2. Visually inspect the wiring harness and associated connectors.
  3. Inspect components: look for damage, broken/bent/corroded pins, or dislodged/damaged vacuum hoses.
  4. Test sensors/valves: vacuum actuator, EGR valve, EGR position sensor.
  5. Check correlations between sensors (e.g., MAP vs. barometric pressure – related code P0069).

⚠️ Common Causes of Ford P1304 Code:
• Damaged wiring/connectors, short circuits, or corrosion.
• Sensor/valve failure (e.g., EGR, MAP).
• Cracked or poorly secured vacuum hoses.
• Torn diaphragm in the vacuum actuator or EGR valve.
• Corrupted PCM software or calibration error after repair.
• Faulty PCM (rare – check as a last resort).

ℹ️ What Does Code P1304 Mean?
Generic description: “EGR Calibration High”.
⚠️ Note : The exact description may vary depending on your Ford model and year. Consult a specific manual or certified diagnostic tool.

📌 Key Points to Remember:

  1. Always start by inspecting wiring and connectors before replacing components.
  2. PCM reprogramming may be necessary if the software is corrupted.
  3. Code P0069 (MAP/barometric pressure correlation) may accompany P1304.

Good luck with your repairs!

P1304 Honda Code – Random Misfires in Cylinder Number 4 Detected

What are the possible causes of Honda DTC P1304?

NOTE: The listed causes may not be a complete list of all potential problems, and there may be other causes.

  • Check primary and secondary ignition
  • Check the fuel system – Fuel pressure and injector
  • Check for vacuum leaks
  • Check the mechanical condition of the engine
  • Faulty spark voltage detection module

How to fix Honda DTC P1304?

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins. Search for Honda P1304 questions and answers:

What are the possible symptoms of Honda code P1304?

  • Check engine light on (or soon-to-be maintenance required warning light)

What does Honda code P1304 mean?

Cylinder number 4, random misfires detected is the generic description for Honda code P1304, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have additional information about the Honda P1304 OBDII code.

P1304 Code Hyundai – Phase Sensor

What are the possible causes of Hyundai DTC P1304?

NOTE: The listed causes may not be a complete list of all potential issues, and there could be other causes.

  • Faulty phase sensor
  • Phase sensor wiring harness is open or short-circuited
  • Poor electrical connection in the phase sensor circuit

How to repair Hyundai DTC P1304?

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins. Search for Hyundai P1304 questions and answers:

What are the possible symptoms of Hyundai code P1304?

  • Check engine light on (or engine maintenance warning light soon)

What does Hyundai code P1304 mean?

The phase sensor is the generic description for Hyundai code P1304, but the manufacturer may have a different description for your specific vehicle model and year. Currently, we do not have additional information about Hyundai OBDII code P1304.

P1305 Code – Ignition Circuit No. 2 Malfunction

What are the possible causes of DTC P1305?

NOTE: The causes listed may not be a complete list of all potential problems and there may be other causes.

  • Faulty ignition coil #2
  • Ignition coil #2 harness is open or shorted
  • Poor electrical connection in ignition coil #2 circuit
  • Faulty Engine Control Module (ECM)

How to repair DTC P1305?

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins. Search for P1305 questions and answers:

What are the possible symptoms of code P1305?

  • Engine light on (or service engine soon warning light)

What does code P1305 mean?

The Direct Ignition System (DIS) is a 1-cylinder ignition system that ignites one cylinder with an ignition coil. The igniter is an integral part of the ignition coil. The Engine Control Module (ECM) determines ignition timing and outputs an ignition signal (IGT) for each cylinder. Based on the IGT signals, the power transistors in the igniter cut off current to the ignition coil’s primary coil, causing the spark plug to ignite via the ignition coil. After giving a command to deactivate the primary circuit on the IGT wire, the ECM monitors the IGF circuit to ensure that primary switching has occurred.

Code P1305 Information for specific brands

  • P1305 Acura Random/Multiple Cylinder Misfire Detected Cylinder #5
  • P1305 BMW Cylinder 5 Misfire
  • P1305 Buick Ignition Coil 2 Primary Feedback Circuit
  • P1305 Cadillac Ignition Coil 2 Primary Feedback Circuit
  • P1305 Chevrolet Ignition Coil 2 Primary Feedback Circuit
  • P1305 Ford EGR Calibration Low
  • P1305 GMC Ignition Coil 2 Primary Feedback Circuit
  • P1305 Honda Random/Multiple Cylinder Misfire Detected Cylinder #5
  • P1305 Hyundai Abnormal Phase Sensor
  • P1305 Lexus Ignition Coil #2 Circuit Malfunction
  • P1305 MINI Cylinder 5 Misfire
  • P1305 Pontiac Ignition Coil 2 Primary Feedback Circuit
  • P1305 Saturn Ignition Coil 2 Primary Feedback Circuit
  • P1305 Toyota Ignition Coil #2 Circuit Malfunction

Code P1306 – Traction Circuit Fault of the Kickdown Relay

What are the possible causes of DTC P1306?

NOTE: The listed causes may not be a complete list of all potential problems, and there may be other causes.

  • Faulty kickdown relay
  • Kickdown relay wiring harness is open or short-circuited
  • Poor electrical connection in the kickdown relay circuit

How to fix DTC P1306?

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins. Search for P1306 questions and answers:

What are the possible symptoms of code P1306?

  • Check engine light on (or engine maintenance warning light soon)

What does code P1306 mean?

The kickdown relay control circuit malfunction is the generic description for code P1306, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have additional information about the P1306 OBDII code.

Kick Down

Kick Down is a downshifting system used in an automatic transmission. This process provides a way to accelerate the vehicle to the maximum. It is achieved when the accelerator pedal is pressed all the way down.

P1306 Code Acura – Random Misfire Detected in Cylinder Number 6

What are the possible causes of DTC P1306 Acura?

NOTE: The listed causes may not be a complete list of all potential problems, and there may be other causes.

  • Check primary and secondary ignition
  • Check the fuel system – Fuel pressure and injector
  • Check for vacuum leaks
  • Check the mechanical condition of the engine
  • Faulty spark voltage detection module

How to repair DTC P1306 Acura?

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

What are the possible symptoms of P1306 Acura code?

  • Engine light on (or engine maintenance warning light soon)

What does Acura P1306 code mean?

Cylinder number 6, random misfires detected is the generic description for Acura P1306 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have additional information about the Acura P1306 OBDII code.

P1306 BMW Code – Cylinder 6 Misfires

What are the possible causes of BMW DTC P1306?

NOTE: The listed causes may not be a complete list of all potential problems, and there may be other causes.

  • Faulty spark plug 6
  • Faulty ignition coil 6
  • Ignition coil 6 harness is open or shorted
  • Poor electrical connection in ignition coil 6 circuit

How to fix BMW DTC P1306?

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins. Search for BMW P1306 questions and answers:

What are the possible symptoms of BMW code P1306?

  • Engine light on (or service engine soon warning light)
  • Engine runs rough

What does BMW code P1306 mean?

Cylinder 6 Misfire is the generic description for BMW code P1306, but the manufacturer may have a different description for your specific vehicle model and year. Currently, we do not have additional information about BMW OBDII code P1306.

P1306 Ford Code – Kickdown Relay Control Circuit Malfunction

What are the possible causes of Ford DTC P1306?

NOTE: The listed causes may not be a complete list of all potential issues, and there could be other causes.

  • Faulty kickdown relay
  • Kickdown relay wiring harness is open or short-circuited
  • Poor electrical connection in the kickdown relay circuit

How to repair Ford DTC P1306?

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins. Search for Ford P1306 questions and answers:

What are the possible symptoms of Ford code P1306?

  • Check engine light on (or soon-to-be engine maintenance warning light)

What does Ford code P1306 mean?

Kickdown relay control circuit malfunction is the generic description for Ford code P1306, but the manufacturer may have a different description for your specific vehicle model and year. Currently, we do not have additional information regarding Ford OBDII P1306 code.