Intake Valve Timing Control Performance Bank 2
Table of contents
- Possible Causes
- How To Fix
- Tech Notes
- Cost To Diagnose
- When is the code detected
- Possible Symptoms
- Description
P0012 NISSAN Possible Causes
- Low or Dirty Engine Oil
- Faulty Intake valve timing control solenoid valve
- Crankshaft position sensor (POS) may be faulty
- Camshaft position sensor
- Intake valve timing control solenoid valve harness is open or shorted
- Intake valve timing control solenoid valve circuit poor electrical connection
How do I fix code P0012 NISSAN?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
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Cost of diagnosing the P0012 NISSAN code
The cost of diagnosing the P0012 NISSAN code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
When there is a gap between angle of target and phase-control angle degree, the valve will stop working and the ECM will trigger the P0011 code.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Possible Lack/Loss of power
- Possible Engine rough idle
P0012 NISSAN Description
This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake valve.
The ECM receives signals such as crankshaft position, camshaft position, engine speed, and engine coolant temperature. Then, the ECM sends ON/OFF pulse duty signals to the intake valve timing control solenoid valve depending on driving status. This makes it possible to control the shut/open timing of the intake valve to increase engine torque in low/mid speed range and output in high-speed range.
The intake valve timing control solenoid valve changes the oil amount and direction of flow through intake valve timing control unit or stops oil flow. The longer pulse width advances valve angle. The shorter pulse width retards valve angle. When ON and OFF pulse widths become equal, the solenoid valve stops oil pressure flow to fix the intake valve angle at the control position.
