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Code P2498

Quick reference

P2498 at a glance

Plain-language meaning
This code means that the car's computer has detected a problem with a sensor that helps control the exhaust gas recirculation (EGR) system. It's like a thermometer that isn't working right, so the car doesn't know if it's too hot or too cold.
Urgency
Moderate – This issue can lead to increased emissions and reduced engine performance.
Difficulty
Moderate
System
Sensor Issue
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 has detected a problem with a sensor that helps control the exhaust gas recirculation (EGR) system. It's like a thermometer that isn't working right, so the car doesn't know if it's too hot or too cold.

Explanation

The EGR cooler bypass position sensor monitors the position of the EGR cooler bypass valve. If the sensor's readings are outside the expected range, this code is triggered.

Technical description

The P2498 code is set when the Powertrain Control Module (PCM) detects a range or performance problem with the EGR cooler bypass position sensor on bank 2. This sensor helps manage the flow of exhaust gases through the EGR cooler to optimize engine efficiency and emissions. Bank 2 refers to the side of the engine opposite to bank 1, which contains cylinder 1.

Symptoms

• Check Engine Light is on

• Reduced engine performance

• Increased emissions

Common Causes

• Faulty EGR cooler bypass position sensor

• Wiring issues or poor electrical connections

• Malfunctioning EGR cooler bypass valve

Glossary

EGR: Exhaust Gas Recirculation

PCM: Powertrain Control Module

Diagnosis steps

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

• Inspect the wiring and connections to the EGR cooler bypass position sensor.

• Test the EGR cooler bypass position sensor for proper operation.

Repair procedures

• Replace the EGR cooler bypass position sensor if faulty.

• Repair or replace damaged wiring or connectors.

• Replace the EGR cooler bypass valve if it's malfunctioning.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$150 - $400

Difficulty level

Moderate

Commonly affected vehicles

• Ford F-250

• Chevrolet Silverado

• Ram 1500

Preventive measures

• Regular maintenance of the EGR system

• Timely replacement of faulty sensors

• Keep electrical connections clean and secure

Error code type

Sensor Issue

User experience recommendations

• If the Check Engine Light is on, have the vehicle inspected as soon as possible.

• Avoid heavy engine loads until the issue is resolved.

Warranty information

Check with your vehicle manufacturer to see if the EGR system components are covered under warranty.

Historical data

The P2498 code has been associated with issues in vehicles with complex EGR systems, especially in diesel engines.

Urgency level

Moderate – This issue can lead to increased emissions and reduced engine performance.

Testing conditions

• Engine at operating temperature

• Vehicle on a flat surface

Component location

The EGR cooler bypass position sensor is typically located near the EGR cooler on the engine, on the side corresponding to bank 2.

FAQs

Q: Can I drive with a P2498 code?
A: It's possible to drive short distances, but it's not recommended as it can lead to increased emissions and reduced performance.

Q: How do I clear a P2498 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is resolved, the code should not return.

Optional diagnostic gear

Tools that may help diagnose P2498

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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