Yes The honda fit ge6 come with Ivtec n idsi in the l13a.
So my question is , For my l13a ivtec , does it works like a 3 stage vtec? 12v / 16v then at higher rpm high cam profile?
Are you asking about how the i-VTEC works in your car? This system essentially uses 2 camshaft profiles and hydraulically selects between the 2, effectively allowing the engine to operate as if it had multiple camshafts. The ECU activates alternate lobes on the camshaft and changes the cam timing as the engine goes through the different RPM ranges. So the engine has maximum engine performance at every RPM range.
The i-DSI in your engine uses 2 spark plugs per cylinder and 8 ignition coils. They fire at different intervals during the combustion process to achieve full burn of the gasoline. Since you are using every ounce of fuel (in theory), this results in more power with low fuel consumption.
Engineers assuming that engine owner is going to strictly maintain oil level, factory spec oil, and oil change intervals...ha !
Using engine oil for a hydraulic oil application is never a good long term thing. ANY contamination (dust in the oil) or dilution and failure is imminent. Ask the diesel guys about their injector failures when their engine oil fails to meet spec.
Ford had a 4 cylinder in-line years ago...8 spark plugs, etc....put put along until you figured out the wiring sequence of getting 2 plugs per cylinder to fire at the same time...vroom !
Those are for the classic b16 engine DOHC vtec engine, L13a is a SOHC 16v engine, with a ivtec , from what i read it the Ivtec is just 12v / 16v opperation and no high cam, i wanted to cfm this.
All you could want to know on the L-series. Full technical article straight from Honda. http://asia.vtec.net/Series/FitJazz/lseries/