The P3444: Cylinder 6 Deactivation/Intake Valve Control Circuit High refers to a high voltage issue in the intake valve control circuit for Cylinder 6. This may result from faulty wiring, poor connections, or a malfunctioning control solenoid. The intake valve control system regulates airflow into Cylinder 6, and high voltage can disrupt proper valve operation, causing engine performance issues.
P3444 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P3444: Cylinder 6 Deactivation/Intake Valve Control Circuit High |
| Is it serious? | Yes, this can cause engine performance issues such as misfires, poor idling, and reduced fuel efficiency. |
| Possible causes | – High voltage in the intake valve control circuit for Cylinder 6 – Faulty wiring or connections – Malfunctioning control solenoid |
| How to diagnose? | – Check the voltage levels in the intake valve control circuit for Cylinder 6 – Inspect wiring and connections for faults – Test the control solenoid for proper operation |
P3444 Meaning
The P3444: Cylinder 6 Deactivation/Intake Valve Control Circuit High code indicates that the voltage in the intake valve control circuit for Cylinder 6 is higher than expected. This can be due to damaged wiring, poor electrical connections, or a malfunctioning intake valve control solenoid. The intake valve regulates airflow into Cylinder 6, and high voltage can lead to improper valve function, resulting in engine misfires, rough idling, or reduced fuel efficiency.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for additional related codes that may provide more insights into Cylinder 6’s intake valve control system issues. | OBD-II Scanner |
| Check Voltage Levels | Use a multimeter to measure the voltage levels in the intake valve control circuit for Cylinder 6. Compare readings to manufacturer specifications to confirm high voltage. | Multimeter, Diagnostic Tool |
| Inspect Wiring and Connections | Visually inspect the wiring and connections leading to Cylinder 6’s intake valve control system. Look for damaged, corroded, or loose connections and repair or replace as necessary. | Flashlight, Multimeter |
| Test Control Solenoid | Test the intake valve control solenoid for Cylinder 6 to ensure it is functioning properly. Measure resistance and verify operation according to manufacturer specifications. Replace if necessary. | Multimeter, Mechanic Tools |
| Repair or Replace Faulty Components | Repair or replace any faulty wiring, connectors, or solenoids identified during diagnostics. Ensure all parts are installed correctly and retest the system after repair. | Mechanic Tools |
| Clear the Code and Test Drive | After repairs, clear the fault code using an OBD-II scanner. Take the vehicle for a test drive to ensure that the intake valve control system for Cylinder 6 is operating properly. | OBD-II Scanner, Vehicle |
| Recheck for Codes | After the test drive, re-scan the vehicle to ensure the P3444 code does not return. If the code reappears, further diagnostics may be required. | OBD-II Scanner |
Free PDF: How to choose OBD2 scanner
I’ve made you a free PDF to choose the OBD2 scanner in 5 minutes.
✅ Which OBD2 scanner is best?
✅ Which type should you get (DIY, Pro, Hobby)
✅ What is the best scanner for the exact brand/feature (e.g best for BMW)
✅ How to get a Bi-Directional tool for as cheap as $40
✅ Discount coupons for scanners
PDF is 100% free and it is designed to help you pick a scanner in less than a few minutes! Not a boring 50-page guide.
Just tell me where to send it.
