AutoCodes – Isuzu – P2002 Isuzu

P2002 Isuzu Code - Diesel Particulate Filter Efficiency Below Threshold Bank 1

Quick Answer

The Diesel Particulate Filter (DPF) is monitored for conditions where it may be overloaded. Common causes include Faulty, damaged or clogged Diesel Particulate Filter (DPF), Dirty air cleaner element. 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: P2002 Isuzu indicates Diesel Particulate Filter Efficiency Below Threshold Bank 1.
Common causes: Common causes include Faulty, damaged or clogged Diesel Particulate Filter (DPF), Dirty air cleaner element.
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 23,348

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 Apr 27, 2020

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

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

Code P2002 Isuzu Description

The Diesel Particulate Filter (DPF) is monitored for conditions where it may be overloaded. The monitor compares the calculated restriction of the DPF to two thresholds. By exceeding the first threshold for a sufficient period of time, a wrench light will be illuminated. By exceeding the second threshold for a sufficient period of time, a wrench light and a MIL will be illuminated and engine output will be limited and EGR is disabled.

OBDII Code P2002 Isuzu - Diesel Particulate Filter Efficiency Below Threshold Bank 1 - AutoCodes.com — P2002 Isuzu Code - Diesel Particulate Filter Efficiency Below Threshold Bank 1

What does this mean?

What are the Possible Causes of the DTC P2002 Isuzu?

Faulty, damaged or clogged Diesel Particulate Filter (DPF)
Dirty air cleaner element

How to Fix the DTC P2002 Isuzu?

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 does this mean?

Code Tech Notes

To resolve this you will have to change the Diesel Particulate Filter and reset the code with an OBD scanner.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2002 Isuzu 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 P2002 Isuzu code?

Need more information on how to fix the P2002 Isuzu code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2002 Isuzu 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 P2002 Isuzu Code

1. What are the common symptoms of OBDII code P2002 on an Isuzu vehicle?

- Common symptoms include reduced engine performance, rough idling, decreased fuel efficiency, and the illumination of the check engine light.

2. What are the possible causes of OBDII code P2002 indicating Diesel Particulate Filter Efficiency Below Threshold Bank 1 on an Isuzu?

- The code P2002 can be triggered by a clogged diesel particulate filter (DPF), faulty DPF sensor, exhaust leaks, or issues with the engine's fuel system.

3. How can I diagnose the root cause of OBDII code P2002 on my Isuzu?

- To diagnose the issue, a professional diagnostic scan tool can be used to monitor the DPF sensor readings, check for exhaust leaks, and inspect the overall condition of the DPF.

4. Can driving habits affect the occurrence of code P2002 on an Isuzu vehicle?

- Yes, frequent short trips or low-speed driving can lead to incomplete DPF regeneration, potentially causing the filter to become clogged and triggering the P2002 code.

5. What are some repair tips for resolving OBDII code P2002 on an Isuzu?

- Repair options may include performing a forced regeneration of the DPF, cleaning or replacing the DPF, checking and repairing any exhaust leaks, and ensuring proper fuel quality and engine maintenance.

6. Is it safe to continue driving an Isuzu with OBDII code P2002 present?

- It is not recommended to continue driving with the P2002 code active, as it can lead to further engine damage and potential DPF failure if left unresolved.

7. How much does it typically cost to repair OBDII code P2002 on an Isuzu?

- The cost of repairing code P2002 can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

8. Can I reset the OBDII code P2002 on my Isuzu without fixing the underlying issue?

- While you can clear the code using a diagnostic scan tool, the underlying issue causing the P2002 code will need to be addressed to prevent it from reoccurring.

9. How often should the diesel particulate filter be inspected and maintained on an Isuzu to prevent code P2002?

- It is recommended to have the DPF system inspected periodically as part of routine maintenance, especially if the vehicle is frequently driven in stop-and-go traffic or short distances.

10. Are there any preventive measures to avoid triggering OBDII code P2002 on an Isuzu?

- Regularly driving at highway speeds to aid DPF regeneration, using high-quality diesel fuel, and following the manufacturer's recommended maintenance schedule can help prevent the occurrence of code P2002.