AutoCodes – Honda – P1122 1999 Honda Civic

P1122 1999 Honda Civic Code - Throttle Position Sensor Signal Higher Than Expected

Quick Answer

P1122 1999 Honda Civic indicates Throttle Position Sensor Signal 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 1999 Honda Civic indicates Throttle Position Sensor Signal 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 2,729

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
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1122 1999 Honda Civic Description

OBDII Code P1122 1999 Honda Civic - Throttle Position Sensor Signal Higher Than Expected - AutoCodes.com — P1122 1999 Honda Civic Code - Throttle Position Sensor Signal Higher Than Expected

What does this mean?

What are the Possible Causes of the DTC P1122 1999 Honda Civic?

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 1999 Honda Civic?

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

You can try to clean the throttle body but in many case the throttle body will have to be replaced.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1122 1999 Honda Civic 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 1999 Honda Civic code?

Need more information on how to fix the P1122 1999 Honda Civic code? Get Access to Factory Service Manuals

Need Help with the 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 1999 Honda Civic Code

1. What are the common symptoms of OBDII code P1122 in a 1999 Honda Civic?

- Common symptoms include poor engine performance, hesitation or stalling, rough idling, and potential issues with acceleration.

2. What does the OBDII code P1122 in a 1999 Honda Civic indicate?

- The code P1122 indicates that the throttle position sensor signal is higher than expected, suggesting a potential issue with the sensor or its wiring.

3. What are the possible causes of OBDII code P1122 in a 1999 Honda Civic?

- Possible causes include a faulty throttle position sensor, damaged wiring or connectors related to the sensor, or a problem with the sensor's calibration.

4. How can I diagnose the OBDII code P1122 in a 1999 Honda Civic?

- Diagnosis typically involves using a scan tool to retrieve the trouble code, inspecting the throttle position sensor and its connections, and testing the sensor's output voltage.

5. Can I drive my 1999 Honda Civic with OBDII code P1122?

- It is not recommended to drive the vehicle with this code present, as it can lead to poor performance and potential safety issues. It's best to address the problem promptly.

6. How can I repair OBDII code P1122 in a 1999 Honda Civic?

- Repair may involve replacing the throttle position sensor, repairing or replacing damaged wiring, or recalibrating the sensor according to manufacturer specifications.

7. Is it possible to reset OBDII code P1122 in a 1999 Honda Civic without fixing the underlying issue?

- While you can clear the trouble code with a scan tool, it is not advisable as the issue will likely recur if the root cause is not addressed.

8. How much does it cost to fix OBDII code P1122 in a 1999 Honda Civic?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

9. Can a DIY enthusiast fix OBDII code P1122 in a 1999 Honda Civic?

- If you have experience working on cars and the necessary tools, you may be able to replace the throttle position sensor yourself. However, it's important to ensure proper diagnosis and installation.

10. How long does it take to repair OBDII code P1122 in a 1999 Honda Civic?

- The repair time can vary based on the extent of the issue and your experience level. Typically, it may take anywhere from 1 to 3 hours to diagnose and fix the problem.