AutoCodes – Isuzu – P1167 Isuzu

P1167 Isuzu Code - Fuel System Rich During Deceleration Fuel Cut-Off Bank 1

Quick Answer

P1167 Isuzu indicates Fuel System Rich During Deceleration Fuel Cut-Off Bank 1. Common causes include Leaking fuel injector (s), High fuel pressure, Failed fuel pressure regulator. 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: P1167 Isuzu indicates Fuel System Rich During Deceleration Fuel Cut-Off Bank 1.
Common causes: Common causes include Leaking fuel injector (s), High fuel pressure, Failed fuel pressure regulator.
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.

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Code Popularity 4,228

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 May 04, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1167 Isuzu Description

OBDII Code P1167 Isuzu - Fuel System Rich During Deceleration Fuel Cut-Off Bank 1 - AutoCodes.com — P1167 Isuzu Code - Fuel System Rich During Deceleration Fuel Cut-Off Bank 1

What does this mean?

What are the Possible Causes of the DTC P1167 Isuzu?

Leaking fuel injector (s)
High fuel pressure
Failed fuel pressure regulator
Faulty Oxygen Sensor 1
Oxygen Sensor 1 harness is open or shorted
Oxygen Sensor 1 circuit poor electrical connection

How to Fix the DTC P1167 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1167 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 P1167 Isuzu code?

Need more information on how to fix the P1167 Isuzu code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1167 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 P1167 Isuzu Code

1. What are the common symptoms of OBDII code P1167 on an Isuzu?

- Common symptoms include poor fuel economy, rough idle, hesitation or stalling during deceleration, and an overall decrease in engine performance.

2. What does the OBDII code P1167 indicating "Fuel System Rich During Deceleration Fuel Cut-Off Bank 1" mean for an Isuzu?

- This code indicates that the fuel system is running rich during deceleration when the fuel cut-off is active on bank 1 of the engine.

3. What are some possible causes of OBDII code P1167 on an Isuzu?

- Potential causes include a faulty oxygen sensor, a malfunctioning fuel pressure regulator, a clogged fuel injector, a vacuum leak, or issues with the engine's air intake system.

4. How can I diagnose and repair OBDII code P1167 on my Isuzu?

- Diagnosing and repairing this code may involve checking the oxygen sensor readings, inspecting the fuel pressure regulator, testing the fuel injectors, checking for vacuum leaks, and ensuring the air intake system is functioning properly.

5. Can driving with OBDII code P1167 on an Isuzu cause further damage to the vehicle?

- Continuing to drive with this code may lead to decreased fuel efficiency, potential damage to the catalytic converter, and further deterioration of engine performance over time.

6. Is it safe to ignore OBDII code P1167 on an Isuzu?

- Ignoring this code is not recommended, as it can lead to poor engine performance, decreased fuel efficiency, and potential long-term damage to engine components.

7. How much does it typically cost to repair OBDII code P1167 on an Isuzu?

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

8. Can I reset OBDII code P1167 on my Isuzu using an OBDII scanner?

- Yes, you can use an OBDII scanner to reset the code, but it is important to address and repair the underlying issue causing the code to prevent it from reoccurring.

9. Will OBDII code P1167 on an Isuzu cause the Check Engine light to illuminate?

- Yes, this code will trigger the Check Engine light to illuminate on the vehicle's dashboard to alert the driver of a potential issue with the fuel system during deceleration.

10. Is it necessary to take my Isuzu to a mechanic for repair if OBDII code P1167 appears?

- While you can attempt some basic diagnostics yourself, it is recommended to seek the expertise of a qualified mechanic to properly diagnose and repair the underlying issue causing the code.