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Code P107A

Quick reference

P107A at a glance

Plain-language meaning
This code means that the part of the car that helps control how the engine breathes is using too much electricity, kind of like a toy that is using too many batteries.
Urgency
Moderate – It should be addressed soon to prevent further engine issues.
Difficulty
Moderate
System
Engine Performance
Tools mentioned
OBD-II scanner, Multimeter, Basic hand tools

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means that the part of the car that helps control how the engine breathes is using too much electricity, kind of like a toy that is using too many batteries.

Explanation

The code indicates that the Variable Valve Lift (VVL) system is drawing more current than expected, suggesting a possible overload or short circuit.

Technical description

The P107A code is triggered when the Engine Control Module (ECM) detects that the current draw for the Variable Valve Lift (VVL) control motor exceeds the specified limit. This could indicate an electrical fault or mechanical obstruction within the VVL system.

Symptoms

• Check Engine Light is on

• Reduced engine performance

• Unusual engine noises

Common Causes

• Faulty VVL control motor

• Short circuit in the VVL motor wiring

• Mechanical obstruction in the VVL system

Glossary

VVL: Variable Valve Lift

ECM: Engine Control Module

Diagnosis steps

• Use an OBD-II scanner to confirm the code.

• Inspect the VVL motor and wiring for damage.

• Check for mechanical obstructions in the VVL system.

Repair procedures

• Replace the faulty VVL control motor.

• Repair or replace damaged wiring.

• Remove any mechanical obstructions in the VVL system.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$200 - $600

Difficulty level

Moderate

Commonly affected vehicles

• Nissan Altima

• Infiniti Q50

• Hyundai Sonata

Preventive measures

• Regular maintenance of the VVL system

• Inspect wiring for wear and tear

• Avoid over-revving the engine

Error code type

Engine Performance

User experience recommendations

• Avoid driving the vehicle until repaired.

• Have a professional mechanic inspect the system.

Warranty information

Check with the vehicle manufacturer for warranty coverage on powertrain components.

Historical data

This code is relatively uncommon and typically associated with specific models known for VVL issues.

Urgency level

Moderate – It should be addressed soon to prevent further engine issues.

Testing conditions

• Engine at operating temperature

• VVL system engaged

Component location

The VVL control motor is typically located on the cylinder head, near the camshaft.

FAQs

Q: Can I drive with a P107A code?
A: It's not recommended as it can lead to reduced performance and potential engine damage.

Q: How do I reset the P107A code?
A: Fix the underlying issue, then use an OBD-II scanner to clear the code.

Optional diagnostic gear

Tools that may help diagnose P107A

THINKCAR ThinkScan Bidirectional diagnostic tool illustration

High-End · Full-system diagnostics

THINKCAR ThinkScan Bidirectional

A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.

Network faults often require full-system access instead of a generic code reader alone.

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Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.

View on Amazon
WORKPRO Wiring Repair Kit diagnostic tool illustration

Universal · Wire connectors and repair kit

WORKPRO Wiring Repair Kit

Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.

Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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