P1346 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 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 Description
What are the Possible Causes of the DTC P1346?
- 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?
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 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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Get the P1346 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P1346 Audi — Ignition Coil Output Stage 3 Short To B+
- P1346 BMW — Misfire During Start Cylinder 3
- P1346 Buick — Intake Camshaft Position Sensor System Performance
- P1346 Cadillac — Intake Camshaft Position Sensor System Performance
- P1346 Chevrolet — Intake Camshaft Position Sensor System Performance
- P1346 GMC — Intake Camshaft Position Sensor System Performance
- P1346 Hyundai — #6 Ion Line Open
- P1346 Lexus — Variable Valve Timing Sensor Bank 1 Range/Performance Problem
- P1346 MINI — Misfire During Start Cylinder 3
- P1346 Pontiac — Intake Camshaft Position Sensor System Performance
- P1346 Saturn — Intake Camshaft Position Sensor System Performance
- P1346 Toyota — Variable Valve Timing Sensor Bank 1 Range/Performance Problem
- P1346 Volkswagen — Ignition Coil Output Stage 3 Short To B+
Frequently Asked Questions about P1346 Code
What does the OBDII code P1346 mean?
P1346 indicates a Variable Valve Timing (VVT) Sensor issue on Bank 1, where the sensor detects a problem with the timing range or performance.
What are common symptoms of code P1346?
Symptoms include a check engine light, rough idling, reduced fuel efficiency, poor engine performance, and potential stalling.
What causes the P1346 code to appear?
Common causes include a faulty VVT sensor, dirty or low engine oil, a defective VVT solenoid, timing chain issues, or electrical problems such as damaged wiring.
How can I diagnose the P1346 code?
Diagnosis involves scanning the vehicle with an OBDII scanner, inspecting the VVT sensor and solenoid, checking engine oil condition, and testing the wiring and connectors.
Can low or dirty engine oil cause the P1346 code?
Yes, inadequate or dirty engine oil can affect the VVT system's performance, potentially triggering the P1346 code.
Is it safe to drive with a P1346 code?
Driving with a P1346 code is not recommended, as it can lead to poor engine performance, increased emissions, and potential long-term damage to the engine.
How is the P1346 code typically fixed?
Repairs may include replacing the VVT sensor or solenoid, cleaning or changing the engine oil, repairing damaged wiring, or addressing timing chain issues.
What tools are needed to fix the P1346 code?
You may need an OBDII scanner, basic hand tools, a multimeter for electrical testing, and potentially new parts like a VVT sensor or solenoid.
Can a loose timing chain cause the P1346 code?
Yes, a loose or worn timing chain can disrupt valve timing and trigger the P1346 code.
How much does it cost to fix the P1346 code?
Costs vary depending on the issue, but VVT sensor replacement typically ranges from $150 to $300, including parts and labor.
Discuss the causes and fixes for P1346 OBDII Code
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