P1346 Lexus 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 Lexus 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.
Code P1346 Lexus Description
What are the Possible Causes of the DTC P1346 Lexus?
- 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 Lexus?
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 Lexus 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.
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Frequently Asked Questions about P1346 Lexus Code
1. What are the common symptoms of OBDII code P1346 in a Lexus related to the Variable Valve Timing Sensor Bank 1 Range/Performance Problem?
The common symptoms of P1346 in a Lexus may include rough idling, loss of power, poor fuel efficiency, and possible stalling.
2. What are the possible causes of OBDII code P1346 in a Lexus?
Potential causes of P1346 include a faulty Variable Valve Timing (VVT) sensor, issues with the VVT solenoid, wiring problems, or a problem with the engine control module.
3. How can I diagnose the Variable Valve Timing Sensor Bank 1 Range/Performance Problem in my Lexus?
Diagnosing P1346 typically involves using an OBDII scanner to retrieve the fault code, checking the VVT sensor and solenoid for proper operation, and inspecting the wiring for any signs of damage or corrosion.
4. Can I drive my Lexus with the P1346 code present?
It is not recommended to drive your Lexus with the P1346 code present, as it can lead to further damage to the engine and affect vehicle performance. It is best to address the issue promptly.
5. What are the repair options for fixing the Variable Valve Timing Sensor Bank 1 Range/Performance Problem in a Lexus?
Repair options may include replacing the faulty VVT sensor or solenoid, repairing any damaged wiring, or resetting the engine control module. In some cases, a professional mechanic may need to diagnose and address the issue.
6. Is it possible to reset the OBDII code P1346 in a Lexus without fixing the underlying issue?
While you can reset the fault code using an OBDII scanner, it is essential to address the underlying problem causing P1346. Ignoring the issue may lead to further complications and potentially costlier repairs down the line.
7. How can I prevent the Variable Valve Timing Sensor Bank 1 Range/Performance Problem in my Lexus?
Regular maintenance, such as oil changes and inspections, can help prevent issues with the VVT system. Additionally, addressing any warning lights or unusual symptoms promptly can help avoid more significant problems.
8. Can a DIY enthusiast fix the Variable Valve Timing Sensor Bank 1 Range/Performance Problem in a Lexus?
Depending on your skill level and access to tools, some DIY enthusiasts may be able to address P1346 by replacing the VVT sensor or solenoid. However, complex diagnostic procedures may require professional expertise.
9. Will clearing the P1346 code make it disappear permanently?
Clearing the fault code may temporarily remove the warning light, but if the underlying issue causing P1346 is not fixed, the code is likely to reappear after driving the vehicle for some time.
10. How much does it typically cost to repair the Variable Valve Timing Sensor Bank 1 Range/Performance Problem in a Lexus?
The cost of repairing P1346 can vary depending on the specific cause of the issue, labor costs, and the prices of replacement parts. It is advisable to consult a mechanic for an accurate estimate based on your vehicle's condition.
Discuss the causes and fixes for P1346 Lexus OBDII Code
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My 2001 Lexus IS300 recently had timing belt, valve cover, water pump, replaced and now 6 months later it sputters when I'm slowing down at lights, stops and even stalls out but will restart right back up. The check engine light came on when it was running really rough on a slight slant. The engine code was P1346. Any suggestions before I take it back to the mechanic? I want to have some knowlege so I'm not taken advantage of.
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Have you change the engine oil since you had the repairs done? If you haven't, then you should start with an oil and filter change. If you have change the engine oil recently, then you may have a problem with the Variable Valve Timing Control Solenoid. The Variable Valve Timing Control Solenoid is the most common cause that will trigger the P1346.
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Yes I have changed the oil and filter recently. Is replacing this solenoid difficult that I can do at home? or requires a mechanic?
Thank you very much.
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You should be able to do it at home. Here is a video with instructions on how to replace the valve.
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