[SOLVED] P3470 Code: Fixing Cylinder 9 Exhaust Valve Control Circuit

The P3470 fault code in automobiles refers to a problem with the Cylinder Deactivation System.

The most common symptom is the illumination of the Engine Light or Service Engine Soon Warning Light.

The cause of this issue can be low oil pressure, restricted oil passage, engine mechanical condition, faulty Cylinder Deactivation Solenoid, or poor electrical connection in the Cylinder Deactivation Solenoid circuit. The repair importance is high as it can lead to engine damage if not addressed promptly.

The repair difficulty is moderate, and the fix involves visually inspecting the wiring harness and connectors, checking for damaged components, and looking for broken, bent, pushed out, or corroded connector’s pins. The repair time is estimated to be around 1.0 hour. To interpret the fault code, one needs to check the possible causes listed above and visually inspect the related wiring harness and connectors.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

If you notice the Engine Light ON or Service Engine Soon Warning Light, it could be a sign of p3470 fault code.

Here are the symptoms to look out for:

  • The P3470 fault code in an automobile can cause several symptoms, including the engine light turning on or the service engine soon warning light appearing.
  • Other symptoms may include reduced engine power, engine stalling, rough idling, and decreased fuel efficiency.
  • Additionally, the vehicle may experience difficulty starting, and there may be a noticeable decrease in acceleration.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle and ensure safe driving conditions.

P3470 fault code can be caused by various factors such as low oil pressure, restricted oil passage, and faulty cylinder deactivation solenoid.

  • The automobile fault code P3470 can be caused by low oil pressure, restricted oil passage, engine mechanical condition, faulty Cylinder Deactivation Solenoid, Cylinder Deactivation Solenoid harness being open or shorted, and Cylinder Deactivation Solenoid circuit having poor electrical connection.

Below are some possible fixes for the automobile fault code p3470, including inspecting wiring harness and connectors for damage or corrosion.

  • To fix the automobile fault code p3470, you need to check the possible causes listed above.
  • Inspect the wiring harness and connectors visually.
  • Look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The automobile fault code P3470 can be diagnosed and fixed in an estimated repair time of 1.0 hour.

The cost of repair is influenced by the hourly rate charged by auto repair shops, which typically ranges between $75 and $150 per hour. Therefore, the total cost of diagnosis and fixing of the P3470 fault code will depend on the hourly rate charged by the auto repair shop.

The P3470 code relates to the cylinder deactivation system in the engine.

The system deactivates certain cylinders to improve fuel economy under light load conditions.

The deactivation is achieved by not allowing the intake and exhaust valves to open on selected cylinders. The deactivation lifters contain spring-loaded locking pins that connect the internal pin housing of the lifter to the outer housing. Switching between V8 and V4 mode is accomplished in less than 250 milliseconds.

The transitions are seamless and transparent to the vehicle operator.

What are the possible causes of the P3470 fault code?

If you see the Engine Light ON or Service Engine Soon Warning Light, it could be due to the P3470 fault code. This code is usually caused by low oil pressure, restricted oil passage, engine mechanical condition, faulty Cylinder Deactivation Solenoid, Cylinder Deactivation Solenoid harness being open or shorted, or Cylinder Deactivation Solenoid circuit having a poor electrical connection. To fix this issue, you should check the possible causes listed above, visually inspect the related wiring harness and connectors, and look for damaged components and broken, bent, pushed out, or corroded connector’s pins.

How can I visually inspect the related wiring harness and connectors to fix the P3470 fault code?

If you’re experiencing an Engine Light ON or Service Engine Soon Warning Light due to a P3470 fault code, you may need to visually inspect the related wiring harness and connectors. This fault code can be caused by low oil pressure, restricted oil passage, engine mechanical condition, faulty Cylinder Deactivation Solenoid, Cylinder Deactivation Solenoid harness being open or shorted, or Cylinder Deactivation Solenoid circuit poor electrical connection. To fix the issue, check the possible causes listed above and visually inspect the related wiring harness and connectors for damaged components, broken, bent, pushed out, or corroded connector’s pins.

What are the consequences of ignoring the P3470 fault code?

Ignoring the P3470 fault code, which indicates a problem with the Cylinder Deactivation Solenoid, can lead to serious consequences. The engine light will remain on, indicating a problem with the engine. The cause of the problem could be low oil pressure, restricted oil passage, or a faulty solenoid. If left unchecked, this could lead to engine damage or failure. It is important to visually inspect the wiring harness and connectors and check for damaged components to avoid further damage.

p3470 error fault code explained

If the engine light is on, it could be due to low oil pressure, restricted oil passage, or a faulty cylinder deactivation solenoid.

Check the possible causes listed above, visually inspect the wiring harness and connectors, and look for damaged components or corroded pins.

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