AutoCodes – Isuzu – P1122 Isuzu

P1122 Isuzu Code - Throttle Position Sensor Circuit Higher Than Expected

Quick Answer

P1122 Isuzu indicates Throttle Position Sensor Circuit Higher Than Expected. Common causes include Faulty Throttle Position Sensor, Throttle Position Sensor harness is open or shorted, Throttle Position Sensor 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: P1122 Isuzu indicates Throttle Position Sensor Circuit Higher Than Expected.
Common causes: Common causes include Faulty Throttle Position Sensor, Throttle Position Sensor harness is open or shorted, Throttle Position Sensor 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.

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Code Popularity 9,355

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 25, 2019

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
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Code P1122 Isuzu Description

OBDII Code P1122 Isuzu - Throttle Position Sensor Circuit Higher Than Expected - AutoCodes.com — P1122 Isuzu Code - Throttle Position Sensor Circuit Higher Than Expected

What does this mean?

What are the Possible Causes of the DTC P1122 Isuzu?

Faulty Throttle Position Sensor
Throttle Position Sensor harness is open or shorted
Throttle Position Sensor circuit poor electrical connection

How to Fix the DTC P1122 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 P1122 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 P1122 Isuzu code?

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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 P1122 Isuzu Code

1. What are the common symptoms of OBDII code P1122 in an Isuzu related to the Throttle Position Sensor Circuit being higher than expected?

- Common symptoms include issues with acceleration, poor engine performance, stalling, and potentially even difficulty starting the vehicle.

2. What are the possible causes of the OBDII code P1122 in an Isuzu?

- The code P1122 can be triggered by a faulty throttle position sensor, a problem with the wiring or connections to the sensor, or issues with the engine control module.

3. How can I diagnose the cause of the OBDII code P1122 in my Isuzu?

- You can start by checking the wiring and connections to the throttle position sensor, testing the sensor itself for proper functionality, and using a scan tool to further diagnose the issue.

4. Is it safe to drive with OBDII code P1122 in an Isuzu?

- It is not recommended to drive with the code P1122 active, as it can lead to further engine problems and potential safety hazards. It's best to address the issue as soon as possible.

5. Can I reset the OBDII code P1122 in my Isuzu without fixing the underlying issue?

- While you can clear the code temporarily, it will likely reappear if the root cause is not addressed. It's important to fix the underlying problem to prevent further issues.

6. How much does it typically cost to repair OBDII code P1122 in an Isuzu?

- The cost of repairing the code P1122 can vary depending on the exact cause of the issue. It may involve replacing the throttle position sensor, repairing wiring, or reprogramming the engine control module.

7. Can I fix the OBDII code P1122 in my Isuzu myself, or do I need a professional mechanic?

- Depending on your level of automotive knowledge and experience, you may be able to address the issue yourself by following repair guides and using the necessary tools. However, if you are unsure, it's best to consult a professional mechanic.

8. Will OBDII code P1122 cause my Isuzu to fail an emissions test?

- Yes, the code P1122 can cause your Isuzu to fail an emissions test due to its impact on engine performance and emissions output. It's important to address the issue before undergoing an emissions test.

9. How long does it typically take to repair OBDII code P1122 in an Isuzu?

- The repair time for the code P1122 can vary depending on the exact cause of the issue and the complexity of the repair. It may take a few hours to a full day to diagnose and fix the problem.

10. Can extreme weather conditions affect the triggering of OBDII code P1122 in an Isuzu?

- Yes, extreme weather conditions can sometimes affect the throttle position sensor's performance, potentially leading to the triggering of the code P1122. It's important to consider environmental factors when diagnosing the issue.