AutoCodesMazda – P1122 Mazda

P1122 Mazda Code - Throttle Position Sensor Stuck Closed Lower Than Expected

Quick Answer

P1122 Mazda indicates Throttle Position Sensor Stuck Closed Lower 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 Mazda indicates Throttle Position Sensor Stuck Closed Lower 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 3,563
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 21, 2020
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Code P1122 Mazda Description

OBDII Code P1122 Mazda - Throttle Position Sensor Stuck Closed Lower Than Expected - AutoCodes.com
P1122 Mazda Code - Throttle Position Sensor Stuck Closed Lower Than Expected

What are the Possible Causes of the DTC P1122 Mazda?

  • 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 Mazda?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1122 Mazda 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 Mazda 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 Mazda Code

What does OBD-II code P1122 mean on a Mazda?

P1122 indicates the throttle position sensor (TPS) is stuck closed or reporting a lower-than-expected voltage, which can affect engine performance.

What are common symptoms of a P1122 code on a Mazda?

Symptoms include poor acceleration, rough idling, stalling, reduced fuel efficiency, and the check engine light being illuminated.

What causes the P1122 code on a Mazda?

Common causes include a faulty throttle position sensor, damaged wiring or connectors, or carbon buildup in the throttle body.

How can I diagnose the P1122 code on my Mazda?

Use an OBD-II scanner to confirm the code, inspect the TPS and its wiring for damage, and check for throttle body obstructions or excessive carbon buildup.

Can I drive my Mazda with the P1122 code?

Driving with P1122 is possible but not recommended, as it can lead to poor engine performance and potential safety risks like stalling.

How do I fix the P1122 code on a Mazda?

Repair options include cleaning or replacing the throttle position sensor, repairing damaged wiring, or cleaning the throttle body to remove carbon buildup.

How much does it cost to repair the P1122 code?

Costs vary depending on the repair, with TPS replacement typically costing $100–$300, including labor, while cleaning the throttle body may be cheaper.

Will resetting the check engine light fix the P1122 code?

Resetting the check engine light clears the code temporarily, but the underlying issue must be addressed to prevent the code from returning.

Can a P1122 code affect fuel efficiency?

Yes, a stuck throttle position sensor can cause improper air-fuel mixture, leading to reduced fuel efficiency.

Is the throttle position sensor easy to replace on a Mazda?

Replacing the TPS is generally straightforward and can be done with basic tools, though professional assistance may be needed for proper calibration.

Discuss the causes and fixes for P1122 Mazda OBDII Code

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