AutoCodes – Lincoln – P2428 Lincoln

P2428 Lincoln Code - Exhaust Gas Temperature Too High Bank 1

Quick Answer

The Powertrain Control Module (PCM) monitors the Exhaust Gas Temperature (EGT) sensor for a biased signal value. Common causes include Faulty Exhaust Gas Temperature (EGT), Exhaust Gas Temperature (EGT) harness is open or shorted, Exhaust Gas Temperature (EGT) circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P2428 Lincoln indicates Exhaust Gas Temperature Too High Bank 1.
Common causes: Common causes include Faulty Exhaust Gas Temperature (EGT), Exhaust Gas Temperature (EGT) harness is open or shorted, Exhaust Gas Temperature (EGT) circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,204

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P2428 Lincoln Description

The Powertrain Control Module (PCM) monitors the Exhaust Gas Temperature (EGT) sensor for a biased signal value. Following an 8-hour soak, the PCM records the EGT sensor temperature value at key ON, engine OFF. After several minutes of vehicle operation at vehicle speeds greater than 40.2 km/h (25 mph) the PCM calculates an expected key ON, engine OFF value. The PCM determines what the expected EGT value at key ON, engine OFF should have been based on inputs from other sensors. The test fails when the difference between the expected calculated value and the actual recorded value is greater than 40°C (72°F).

OBDII Code P2428 Lincoln - Exhaust Gas Temperature Too High Bank 1 - AutoCodes.com — P2428 Lincoln Code - Exhaust Gas Temperature Too High Bank 1

What does this mean?

What are the Possible Causes of the DTC P2428 Lincoln?

Faulty Exhaust Gas Temperature (EGT)
Exhaust Gas Temperature (EGT) harness is open or shorted
Exhaust Gas Temperature (EGT) circuit poor electrical connection
Extreme changes in ambient temperature soon after key ON, engine running

How to Fix the DTC P2428 Lincoln?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2428 Lincoln code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P2428 Lincoln code?

Need more information on how to fix the P2428 Lincoln code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2428 Lincoln code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2428 Lincoln Code

What does the OBDII code P2428 mean for my Lincoln?

P2428 indicates that the exhaust gas temperature for Bank 1 is too high, which may suggest a problem with the exhaust system or related components.

What are the common symptoms associated with the P2428 code?

Common symptoms include illuminated check engine light, decreased engine performance, poor fuel economy, and potential overheating of the exhaust system.

What could cause the P2428 code to trigger in my Lincoln?

Causes may include a faulty exhaust gas temperature (EGT) sensor, issues with the catalytic converter, an exhaust leak, or problems with the engine management system.

How can I diagnose the P2428 code?

Start by checking the EGT sensor and its wiring for damage, inspect the exhaust system for leaks, and use a scan tool to monitor the EGT readings while the engine is running.

What are some common repairs for the P2428 code?

Repairs may involve replacing a faulty EGT sensor, fixing exhaust leaks, replacing a malfunctioning catalytic converter, or reprogramming the engine control module.

Can driving with the P2428 code cause damage to my vehicle?

Yes, ignoring the P2428 code can lead to further damage to the exhaust system or engine components due to overheating or improper fuel management.

Should I reset the code after repairs?

Yes, after completing repairs, itâ€™s advisable to clear the code using an OBDII scanner and monitor the vehicle for any reoccurrence of the issue.

How can I prevent the P2428 code from occurring again?

Regular maintenance, including timely oil changes and exhaust system inspections, can help prevent issues that may lead to the P2428 code.

Is it safe to drive my Lincoln with the P2428 code?

While it may be safe for a short distance, it is recommended to have the vehicle inspected as driving with high exhaust gas temperatures can lead to more severe damage.