Engine-CodesGeneric – P3470

P3470 Code - Cylinder 9 Exhaust Valve Control Circuit Performance

Quick Answer

The diagnostic trouble code P3470 indicates an issue with the performance of the exhaust valve control circuit in cylinder 9 of the engine. Common causes include Faulty wiring or connectors in the exhaust valve control circuit, Malfunctioning exhaust valve control solenoid, Issues with the engine control module (ECM). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P3470 indicates Cylinder 9 Exhaust Valve Control Circuit Performance.
Common causes
Common causes include Faulty wiring or connectors in the exhaust valve control circuit, Malfunctioning exhaust valve control solenoid, Issues with the engine control module (ECM).
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code P3470 Description

The diagnostic trouble code P3470 indicates an issue with the performance of the exhaust valve control circuit in cylinder 9 of the engine. This code is typically found in vehicles with variable valve timing (VVT) systems, which control the opening and closing of the exhaust valves to optimize engine performance and fuel efficiency.

OBDII Code P3470 - Cylinder 9 Exhaust Valve Control Circuit Performance
P3470 Code - Cylinder 9 Exhaust Valve Control Circuit Performance

Common Causes of P3470

  1. Faulty wiring or connectors in the exhaust valve control circuit
  2. Malfunctioning exhaust valve control solenoid
  3. Issues with the engine control module (ECM)
  4. Mechanical problems with the exhaust valve itself
  5. Poor oil quality or lack of regular oil changes affecting VVT components

Symptoms of P3470

  1. Decreased fuel efficiency
  2. Engine misfires
  3. Rough idling or stalling
  4. Loss of engine power
  5. Illuminated check engine light

How to Fix P3470

  1. Diagnose the specific cause of the issue using a diagnostic scan tool.
  2. Inspect and test the wiring, connectors, and exhaust valve control solenoid for any faults or damage.
  3. Replace any faulty components, such as wiring, connectors, or the exhaust valve control solenoid.
  4. Clear the diagnostic trouble codes from the ECM and perform a test drive to ensure the issue has been resolved.
  5. If necessary, reprogram the ECM to ensure proper operation of the exhaust valve control circuit.

Cost to Fix P3470

The typical repair costs for addressing a cylinder 9 exhaust valve control circuit performance issue can vary depending on the specific cause of the problem and the vehicle make and model. In general, this repair can range from $200 to $500 for parts and labor. It's important to note that labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your location and vehicle type.

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Code P3470 Information for Specific Makes

  • P3470 Chrysler — Cylinder 9 Exhaust Valve Control Circuit Performance
  • P3470 Dodge — Cylinder 9 Exhaust Valve Control Circuit Performance
  • P3470 Jeep — Cylinder 9 Exhaust Valve Control Circuit Performance
About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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