I was referring to other 10th gensNot all civics are DI. Historically, not all Si's have been DI either. For instance, the 2015 Si (2.4L VTEC) was port injected. Most non-turbo, non-Si Civics are port injected as well, if I'm consuming my research correctly. DI was mostly for the performance line.
Yup, exactly what I was hearing, and how I was hearing it. Good science-ing. Didn't quite line up with RPM for me but I bet that's because the ECU is faster than I am.The DI shuts off when the RPMs are in decline. You can test this by driving close to the wall of a building.
1. Roll down your window and have the building close to your driver's side.
2. Start accelerating.
3. Shift to 2nd gear and let off the gas. (you'll hear the clicks stop)
4. You'll reach a low enough rpm that the injectors begin to fire again. This happens as the engine needs to keep turning, and the rolling momentum can longer sustain the resistance of the engine turning.
Important note: You use 0 fuel when engine braking. It's just how it works folks.
read #4 from Doc's post.. "4. You'll reach a low enough rpm that the injectors begin to fire again. This happens as the engine needs to keep turning, and the rolling momentum can longer sustain the resistance of the engine turning."So I just got my new 2018 Si today, and I notice that i hear that ticking when its stopped, which i know is normal, but when I am going through gears 1-3 it sounds almost like a diesel or something, its like another sort of deeper clicking when accelerating in gears 1 through 3......is that normal?
Sort of? I'm not sure how to explain it. i just sounds like a deeper, sort of studdering building sound from gears 1-3. it may very well be normal and I'm just not used to it. It sounds like it could be normal.read #4 from Doc's post.. "4. You'll reach a low enough rpm that the injectors begin to fire again. This happens as the engine needs to keep turning, and the rolling momentum can longer sustain the resistance of the engine turning."
is this what's happening to you?
Can you explain how it uses 0 fuel when engine braking? Just curious how it works.The DI shuts off when the RPMs are in decline. You can test this by driving close to the wall of a building.
1. Roll down your window and have the building close to your driver's side.
2. Start accelerating.
3. Shift to 2nd gear and let off the gas. (you'll hear the clicks stop)
4. You'll reach a low enough rpm that the injectors begin to fire again. This happens as the engine needs to keep turning, and the rolling momentum can longer sustain the resistance of the engine turning.
Important note: You use 0 fuel when engine braking. It's just how it works folks.
The injectors never open. The click you hear is the injectors pulsing, and if you don't hear any clicks then the injectors are not opening. Not opening = 0 fuel being dispensed into the cylinders.Can you explain how it uses 0 fuel when engine braking? Just curious how it works.
Thanks
i'm not sure if this is only isolated to Si's.. i don't hear it on other models.. although i did see a hatch sport the other day that made ticking sounds.One think I can't understand: how can you hear the engine / ticking at idle? In mine, there is no audible indication in regard to whether it is on or off at idle.
Which, apart from the obvious fuel economy benefits, it is also beneficial for the engine as it helps removing heat and carbon build-up.Drawing air in, compressing it, then pushing the air out w/o any combustion.