AutoCodes – Subaru – P1146 Subaru

P1146 Subaru Code - Pressure Sensor Circuit Range/Performance Problem High Input

Quick Answer

P1146 Subaru indicates Pressure Sensor Circuit Range/Performance Problem High Input. Common causes include Faulty Pressure Sensor, Pressure Sensor harness is open or shorted, Pressure 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: P1146 Subaru indicates Pressure Sensor Circuit Range/Performance Problem High Input.
Common causes: Common causes include Faulty Pressure Sensor, Pressure Sensor harness is open or shorted, Pressure 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 6,591

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

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Table of contents Created and updated by William Orellana on May 01, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1146 Subaru Description

OBDII Code P1146 Subaru - Pressure Sensor Circuit Range/Performance Problem High Input - AutoCodes.com — P1146 Subaru Code - Pressure Sensor Circuit Range/Performance Problem High Input

What does this mean?

What are the Possible Causes of the DTC P1146 Subaru?

Faulty Pressure Sensor
Pressure Sensor harness is open or shorted
Pressure Sensor circuit poor electrical connection

How to Fix the DTC P1146 Subaru?

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 P1146 Subaru 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 P1146 Subaru code?

Need more information on how to fix the P1146 Subaru code? Get Access to Factory Service Manuals

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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 P1146 Subaru Code

1. What are the common symptoms of OBDII code P1146 in a Subaru?

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

2. What could cause the OBDII code P1146 to trigger in a Subaru?

- The code P1146 in a Subaru is typically triggered by a faulty pressure sensor, wiring issues, vacuum leaks, or a malfunctioning electronic control module (ECM).

3. How can I diagnose the Pressure Sensor Circuit Range/Performance Problem High Input in my Subaru?

- Diagnosis involves using a scan tool to read the OBDII code, checking the pressure sensor and its wiring for any visible damage or wear, and testing the sensor's voltage and resistance.

4. What are the possible repair options for resolving the P1146 code in a Subaru?

- Repair options include replacing the faulty pressure sensor, repairing any damaged wiring, fixing vacuum leaks, or reprogramming the ECM if necessary.

5. Is it safe to continue driving my Subaru with the P1146 code illuminated?

- While driving with the P1146 code illuminated may be possible, it is recommended to address the issue promptly to prevent potential damage to the engine and ensure optimal vehicle performance.

6. Can I reset the P1146 code in my Subaru using an OBDII scanner?

- Yes, you can reset the P1146 code using an OBDII scanner, but it is important to diagnose and address the underlying issue to prevent the code from reoccurring.

7. How much does it typically cost to repair the Pressure Sensor Circuit Range/Performance Problem High Input in a Subaru?

- Repair costs can vary depending on the exact cause of the issue, but replacing a faulty pressure sensor or repairing wiring issues may cost a few hundred dollars at a repair shop.

8. Are there any preventive maintenance tips to avoid the P1146 code in my Subaru?

- To prevent the P1146 code, it is advisable to perform regular maintenance checks, such as inspecting the pressure sensor and its wiring, and addressing any issues promptly.

9. Can extreme weather conditions affect the Pressure Sensor Circuit Range/Performance Problem High Input in a Subaru?

- Yes, extreme weather conditions can potentially affect the pressure sensor's performance, leading to the triggering of the P1146 code in a Subaru.

10. Will the P1146 code in a Subaru cause permanent damage if left unresolved?

- Leaving the P1146 code unresolved may result in decreased engine performance and fuel efficiency over time, potentially leading to more severe issues if not addressed promptly.