OBD Guide
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P107A

Variable Valve Lift Power Stage Warning

P107A is an OBD-II diagnostic trouble code meaning: Variable Valve Lift Power Stage Warning. Common causes: open or short circuit in control circuit, vvl solenoid valve malfunction. Estimated repair cost: $28–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–167 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Unstable idling
  • Increased fuel consumption
  • Engine does not reach full power

Causes

  • Open or short circuit in control circuit
  • VVL solenoid valve malfunction
  • Problems with the engine control unit
  • Mechanical damage to the phase shifter
  • Low oil level or poor quality

How to Fix

  1. Check the level and condition of the engine oil
  2. Diagnose the phase shifter control circuit
  3. Check the resistance of the solenoid valve
  4. Scan the control unit for other errors
  5. If necessary, replace the phase shifter or VVL valve

Related codes

P107BP1079P1080

FAQ

What does the P107A code mean?

P107A is an OBD-II diagnostic trouble code that indicates: Variable Valve Lift Power Stage Warning

What causes a P107A error code?

The most common causes of P107A include: Open or short circuit in control circuit; VVL solenoid valve malfunction; Problems with the engine control unit; Mechanical damage to the phase shifter.

How do I fix a P107A diagnostic trouble code?

To fix P107A: Check the level and condition of the engine oil. Diagnose the phase shifter control circuit. Check the resistance of the solenoid valve. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P107A?

Yes, but get it checked soon

How much does it cost to fix P107A?

The estimated repair cost for P107A is $28–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat