How do I fix code P1349?
Possible fixes include:
- Adding or changing engine oil.
- Repair or replacement of valve timing.
- Repair or replacement of oil control valve.
- Repair or replacement of VVT controlled assembly.
- Repair, replacement, and update of PCM.
Where is the oil control valve?
Oil control valves aren’t found in all vehicles. But they are usually located in cars that have engines with variable valve timing systems in them. They’re designed to help improve the performance of an engine and make it possible for an engine to get better gas mileage with fewer emissions.
What is VVT and how does it work?
Basically, it varies the valve timing by shifting the phase angle of camshafts. For example, at high speed, the inlet camshaft will be rotated in advance by 30° so to enable earlier intake. This movement is controlled by engine management system according to need, and actuated by hydraulic valve gears.
What is VVT system malfunction?
Variable Valve Timing System Malfunction – Bank 1. OBD-II code P1349 indicates a problem with the variable valve timing system in your Toyota. Your Toyota’s variable valve timing system, or VVT is responsible for controlling and adjusting the intake valve timing according to driving conditions.
Where is the VVT solenoid located?
The VVT solenoid is almost always located in the cylinder head near the camshafts. It is most often located at the intake side because VVT is often only installed on the intake camshaft in most car models.
How do I know if my oil control valve is bad?
If you have oil control valve problems, then there are certain symptoms you can look out for. Some of them include slow acceleration, poor brake performance, and a strange burning smell in the car. Before it gets this bad, the computer in your vehicle should give you some warnings first on the dashboard.
What happens if you drive with a bad VVT solenoid?
A malfunctioning VVT solenoid can prevent the valve timing from advancing or retarding as needed. As a result, the engine may exhibit performance problems, such as rough running and poor acceleration.
Is VVT the same as VTEC?
In an automobile engine the intake and exhaust valves move on a camshaft. i-VTEC uses not only timing but also the lift aspect of the valves, while VVTi uses only the timing aspect. The technology that uses timing and lift aspect developed by Toyota is called VVTL-i and can be equated with that of i-VTEC of Honda.
Is VVT engine good?
There are many benefits to using VVT and virtually no drawbacks. One benefit is an increase in maximum engine speed (and therefore more peak power) – as much as a 25% increase. Low speed torque is also increased, providing better handling and drivability.