When did Nissan start using variable valve timing?
There is nothing new about the technology; Nissan was one of the first manufacturers to introduce variable valve timing in the late 1980s on the V6 engine in the 350Z, and now it’s used throughout its line.
How does cam timing affect a Nissan engine?
As you would expect, the engineers who design engines for Nissan are well aware of the performance increases available with cam timing. While the hot rodders are concerned only with performance, the engineers’ task is to deliver economy, driveability, low emissions and performance.
How does the variable gear system work on a Nissan VVT?
The system is really quite simple. There is a variable gear or sprocket mounted on the intake camshaft that adjusts the camshaft timing based on oil flow and direction. It’s controlled by the ECU by way of the two-wire valve timing oil control solenoid that’s mounted on the valve cover.
What makes a Nissan VVT a good diagnostic?
Due to the ability of Nissan’s variable valve timing system to provide increased engine performance, Bob Dowie offers his diagnostic, electronic and mechanical expertise for how import vehicle specialists can most effectively perform engine service.
There is nothing new about the technology; Nissan was one of the first manufacturers to introduce variable valve timing in the late 1980s on the V6 engine in the 350Z, and now it’s used throughout its line.
The system is really quite simple. There is a variable gear or sprocket mounted on the intake camshaft that adjusts the camshaft timing based on oil flow and direction. It’s controlled by the ECU by way of the two-wire valve timing oil control solenoid that’s mounted on the valve cover.
When to replace a variable valve timing solenoid?
When it comes time to have your variable valve timing solenoid or solenoids replaced, your vehicle may have symptoms such as an illuminated Check Engine Light, loss of power, bad fuel economy, and a rough idle.
Why is my variable valve timing not working?
The passing of additional oil to the VVT gears is a possibility if the system is not working properly. This very phenomenon manifests itself in the rough idling of the engine. It is primarily because the engine’s RPM fluctuates as the VVT starts working.
When it comes time to have your variable valve timing solenoid or solenoids replaced, your vehicle may have symptoms such as an illuminated Check Engine Light, loss of power, bad fuel economy, and a rough idle.
The passing of additional oil to the VVT gears is a possibility if the system is not working properly. This very phenomenon manifests itself in the rough idling of the engine. It is primarily because the engine’s RPM fluctuates as the VVT starts working.