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Code P3498

Quick reference

P3498 at a glance

Plain-language meaning
This code means that the car's computer thinks there's a problem with one of the parts that helps the engine 'breathe' properly. It's like when you try to take a deep breath, but something is blocking your nose.
Urgency
Moderate – It is advisable to address this issue soon to prevent further engine performance problems.
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 thinks there's a problem with one of the parts that helps the engine 'breathe' properly. It's like when you try to take a deep breath, but something is blocking your nose.

Explanation

The code P3498 is triggered when the Engine Control Module (ECM) detects an issue with the deactivation of the intake valve on cylinder 1. This can affect the engine's performance and efficiency.

Technical description

P3498 indicates a malfunction in the cylinder deactivation system, specifically related to the intake valve of cylinder 1. Cylinder deactivation is used to improve fuel efficiency by deactivating certain cylinders when full power is not needed. A failure in this system can lead to poor engine performance and increased emissions.

Symptoms

• Check Engine Light (CEL) illuminated

• Reduced engine performance

• Increased fuel consumption

Common Causes

• Faulty intake valve control solenoid

• Wiring issues or poor electrical connections

• Mechanical failure in the valve train

Glossary

ECM: Engine Control Module

CEL: Check Engine Light

Diagnosis steps

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

• Inspect the wiring and connections related to the intake valve control solenoid.

• Perform a mechanical inspection of the valve train components.

Repair procedures

• Replace the intake valve control solenoid if faulty.

• Repair or replace damaged wiring or connectors.

• Address any mechanical issues within the valve train.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$150 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Honda Accord

• Honda Odyssey

• Acura MDX

Preventive measures

• Regular maintenance and inspection of the engine components

• Timely oil changes to prevent sludge buildup

• Use of high-quality fuels and oils

Error code type

Engine Performance

User experience recommendations

• Do not ignore the Check Engine Light.

• Have the vehicle inspected by a professional if you notice performance issues.

Warranty information

Check with the vehicle manufacturer for specific warranty coverage on engine components.

Historical data

This code is often associated with vehicles that have cylinder deactivation technology, which has been used to improve fuel efficiency in certain models.

Urgency level

Moderate – It is advisable to address this issue soon to prevent further engine performance problems.

Testing conditions

• Engine at operating temperature

• Vehicle driven at varying speeds

Component location

The intake valve control solenoid is typically located near the cylinder head of the engine.

FAQs

Q: What happens if I ignore this code?
A: Ignoring this code can lead to poor engine performance and increased fuel consumption.

Q: Can I drive my car with this code?
A: While the car may still be drivable, it's best to address the issue to avoid potential damage and maintain fuel efficiency.

Optional diagnostic gear

Tools that may help diagnose P3498

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.

Source: ezOBD2 diagnostic database
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