no need to externally fitted EGR .Reason VVT have valve actuate various angle depends engine speed that time valve overlapp is high . in end of exhaust stroke both valve open condition exhaust gas easy to mix with fresh air . it acting on same as EGR
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.
"What is the VVT Cam Gear Unit?"
how to change vvt solenoid 2000echo
No, older Prius used Toyota's 1.5 VVT-i and the current model uses the 1.8 VVT-i both use chains that are good for the life of the engine.
It is a 3.6 Liter engine with variable valve timing (VVT).
Yes Toyota vehicles with a 3.3L V6 engine that has VVT-i have timing belts.
what is VVT-I
VVT is located in the front of the engine cam shaft. You may need a qualified service personnell to change it.
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.
On most 4 cylinder Nissans, the solenoid for the VVT is located at the front passenger side of the cylinder head.
Variable valve timing.
There is no EGR valve on a 2000 Honda CR-V. The emission system used in these vehicles did not require an EGR.