AutoCodes – Toyota – P1346 2001 Toyota Echo

P1346 2001 Toyota Echo Code - Variable Valve Timing Sensor Bank 1 Range/Performance Problem

Quick Answer

Variable Valve Timing (VVT) sensor (VVT signal) consist of a signal plate and pickup coil. Common causes include Faulty Variable Valve Timing (VVT) Sensor, Variable Valve Timing (VVT) Sensor harness is open or shorted, Variable Valve Timing (VVT) 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: P1346 2001 Toyota Echo indicates Variable Valve Timing Sensor Bank 1 Range/Performance Problem.
Common causes: Common causes include Faulty Variable Valve Timing (VVT) Sensor, Variable Valve Timing (VVT) Sensor harness is open or shorted, Variable Valve Timing (VVT) 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 5,889

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 May 17, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1346 2001 Toyota Echo Description

Variable Valve Timing (VVT) sensor (VVT signal) consist of a signal plate and pickup coil. The VVT signal plate has 1 tooth on its outer circumference and is mounted on the intake camshafts. When the camshafts rotate, the protrusion on the signal plate and the air gap on the pickup coil change, causing fluctuations in the magnetic field and generating an electromotive force in the pickup coil. The actual camshaft angle is detected by the VVT sensor and it provides feedback to the Engine Control Module (ECM) to control the intake valve timing in response to during condition.

OBDII Code P1346 2001 Toyota Echo - Variable Valve Timing Sensor Bank 1 Range/Performance Problem - AutoCodes.com — P1346 2001 Toyota Echo Code - Variable Valve Timing Sensor Bank 1 Range/Performance Problem

What does this mean?

What are the Possible Causes of the DTC P1346 2001 Toyota Echo?

Faulty Variable Valve Timing (VVT) Sensor
Variable Valve Timing (VVT) Sensor harness is open or shorted
Variable Valve Timing (VVT) Sensor circuit poor electrical connection
Engine Control Module (ECM)

How to Fix the DTC P1346 2001 Toyota Echo?

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 P1346 2001 Toyota Echo 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 P1346 2001 Toyota Echo 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 P1346 2001 Toyota Echo Code

1. What are common symptoms of OBDII code P1346 in a 2001 Toyota Echo?

- Common symptoms include rough idling, engine misfires, decreased fuel efficiency, and potential stalling.

2. What does the OBDII code P1346 in a 2001 Toyota Echo indicate?

- The code P1346 indicates a Variable Valve Timing Sensor Bank 1 Range/Performance Problem.

3. What are the possible causes of OBDII code P1346 in a 2001 Toyota Echo?

- Possible causes include a faulty Variable Valve Timing (VVT) sensor, issues with the VVT system, engine oil flow problems, or a malfunctioning VVT solenoid.

4. How can I diagnose the Variable Valve Timing Sensor Bank 1 Range/Performance Problem in my 2001 Toyota Echo?

- Diagnosing the issue may involve checking the VVT sensor, inspecting the VVT system components, and verifying proper engine oil levels and pressure.

5. Is it safe to continue driving my 2001 Toyota Echo with the P1346 code?

- It is not recommended to drive the vehicle with the P1346 code, as it can lead to further engine damage and potential safety hazards.

6. How can I repair the Variable Valve Timing Sensor Bank 1 Range/Performance Problem in my 2001 Toyota Echo?

- Repair options may include replacing the faulty VVT sensor, addressing issues with the VVT system, ensuring proper engine oil circulation, and resetting the fault code.

7. Can I reset the OBDII code P1346 in my 2001 Toyota Echo without fixing the underlying issue?

- While you can reset the code using an OBDII scanner, it is important to address the root cause of the problem to prevent it from recurring.

8. Will replacing the VVT sensor fix the P1346 code in my 2001 Toyota Echo?

- Replacing the VVT sensor may resolve the issue, but it is recommended to perform a thorough diagnosis to ensure all related components are functioning correctly.

9. How much does it cost to repair the Variable Valve Timing Sensor Bank 1 Range/Performance Problem in a 2001 Toyota Echo?

- Repair costs can vary depending on the exact cause of the issue, but it is advisable to consult a professional mechanic for an accurate estimate.

10. Can I prevent the Variable Valve Timing Sensor Bank 1 Range/Performance Problem in my 2001 Toyota Echo?

- Regular maintenance, including timely oil changes and engine inspections, can help prevent issues with the VVT system and reduce the likelihood of encountering the P1346 code.