According to Wikipedia, a variable valve timing is a "process of altering the timing of a valve lift event, and is often used to improve performance, fuel economy or emissions".
Variable valve timing.
It is a 3.6 Liter engine with variable valve timing (VVT).
No, VVT is to be introduced on the 5.3 in 2010
Variable Valve Timing. This means the valve timing self adjusts to set the optimum time they open and shut to maximise engine fuel/power efficiency.
Exhaust camshaft phasing on a VVT (variable valve timing) engine is the adjustment of the exhaust camshaft(valve timing) to what the cylinder needs at that rpm/load to improve power/eff. or emissions.
No, the Nissan X-Trail does not have VVT-i (Variable Valve Timing with intelligence) technology in its engine. VVT-i is a technology developed by Toyota to improve engine performance and fuel efficiency by adjusting the timing of the intake and exhaust valves. Nissan uses a different technology called CVTC (Continuous Variable Valve Timing Control) in some of its engines, but not in the X-Trail model.
Exhaust camshaft phasing on a VVT (variable valve timing) engine is the adjustment of the exhaust camshaft(valve timing) to what the cylinder needs at that rpm/load to improve power/eff. or emissions.
It is an error code that says the variable valve timing is out of limits, may need a timing adjustment or a new vvt solenoid
VVT-i, or Variable Valve Timing with intelligence, is an automobile variable valve timing technology developed by Toyota, similar in performance to the BMW's VANOS. The Toyota VVT-i system replaces the Toyota VVT offered starting in 24 December 1991 on the 5-valve per cylinder 4A-GE engine. The VVT system is a 2-stage hydraulically controlled cam phasing system. The Toyota motors CEO has been reported to have said, "VVT is the heart of every modern Toyota!"[citation needed]VVT-i, introduced in 1996, varies the timing of the intake valves by adjusting the relationship between the camshaft drive (belt, scissor-gear or chain) and intake camshaft. Engine oil pressure is applied to an actuator to adjust the camshaft position. Adjustments in the overlap time between the exhaust valve closing and intake valve opening result in improved engine efficiency.[1] Variants of the system, including VVTL-i, Dual VVT-i, VVT-iE, and Valvematic, have followed.
There is no EGR valve on this generation of Corolla. This engine is equipped with VVT-i (variable valve timing with intelligence), that allows it to perform the function of EGR without the former EGR hardware.
P1388 is VVT(Variable Valve Timing) over retarded-bank 2. Possible causes are VVT solenoid electrical or mechanical faults or possible actuator stuck or oil supply problem.
A VTC (Variable Timing Control) solenoid is an essential component in an engine's variable valve timing (VVT) system. It regulates the flow of oil to the VVT actuator, allowing for adjustments in the timing of the intake and exhaust valves based on engine speed and load. This optimization enhances engine performance, fuel efficiency, and reduces emissions. When malfunctioning, a VTC solenoid can lead to poor engine performance or increased emissions.