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Code P1113

Quick reference

P1113 at a glance

Plain-language meaning
This code means that the car's computer detected a problem with the system that helps control the engine's valves on one side of the engine. It's like a safety switch turned off because it sensed something wrong.
Urgency
Moderate – Address the issue soon to prevent potential engine damage.
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 car's computer detected a problem with the system that helps control the engine's valves on one side of the engine. It's like a safety switch turned off because it sensed something wrong.

Explanation

The VVL (Variable Valve Lift) system adjusts the lift of the engine's valves to optimize performance and efficiency. This code indicates an overload protection triggered in the control motor system for Bank 2, causing a shutdown.

Technical description

The P1113 code is triggered when the engine control module (ECM) detects an overload condition in the Variable Valve Lift (VVL) control motor system on Bank 2 of the engine. This system is responsible for adjusting the valve lift to improve engine performance and efficiency. An overload protection mechanism is activated to prevent damage to the system.

Symptoms

• Check Engine Light illuminated

• Reduced engine performance

• Engine misfires

Common Causes

• Faulty VVL control motor

• Wiring issues in the VVL system

• Defective ECM

Glossary

VVL: Variable Valve Lift

ECM: Engine Control Module

Diagnosis steps

• Scan the vehicle for additional trouble codes.

• Inspect the wiring and connectors for the VVL system.

• Test the VVL control motor for proper operation.

Repair procedures

• Replace the faulty VVL control motor.

• Repair or replace damaged wiring or connectors.

• Reprogram or replace the ECM if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$200 - $600

Difficulty level

Moderate

Commonly affected vehicles

• Nissan Altima

• Nissan Maxima

• Infiniti G35

Preventive measures

• Regularly inspect and maintain the VVL system.

• Ensure proper engine oil levels and quality.

• Address any Check Engine Light issues promptly.

Error code type

Engine Performance

User experience recommendations

• Avoid driving the vehicle until repaired to prevent further damage.

• Consult with a professional mechanic for a thorough diagnosis.

Warranty information

Check with the vehicle manufacturer for any applicable warranties related to the engine control system.

Historical data

This code has been associated with Nissan and Infiniti vehicles that utilize VVL technology, particularly in models with V6 engines.

Urgency level

Moderate – Address the issue soon to prevent potential engine damage.

Testing conditions

• Engine at operating temperature

• Vehicle in a safe, stationary position

Component location

The VVL control motor is typically located on the cylinder head of the engine, on Bank 2.

FAQs

Q: What does Bank 2 mean?
A: Bank 2 refers to the side of the engine that does not contain cylinder 1, typically found in V-type engines.

Q: Can I drive with a P1113 code?
A: It's not recommended to drive with this code active, as it may lead to engine performance issues and further damage.

Optional diagnostic gear

Tools that may help diagnose P1113

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.

View on Amazon
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.

Fitment matters

Commonly referenced parts for P1113

NGK Spark Plugs product illustration

Fitment Required · Vehicle-fitment part

NGK Spark Plugs

Commonly relevant for misfire, ignition-efficiency, and some drivability-related repairs.

Misfire and ignition-related faults commonly involve spark plugs as part of the repair path.

Check the correct plug type, gap, and engine application for your vehicle.

View options on Amazon
Delphi Ignition Coil product illustration

Fitment Required · Vehicle-fitment part

Delphi Ignition Coil

Relevant when the fault points toward ignition-coil performance or cylinder-specific ignition issues.

Some ignition faults involve coil performance or cylinder-specific coil problems.

Match the coil to your engine and confirm the failed component before ordering.

View options on Amazon

These parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.

Source: ezOBD2 diagnostic database
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