This can't be right

[e30Matt]

I believe that on modern day cars the fuel injectors are shut off when coasting in gear, but when in neutral/idling the injectors are still firing. when it's in gear the engine is connected to the wheels via the transmission and driveline. As long as you are rolling forward the engine will continue to spin with or without fuel or air because the momentum is enough to sustain amirite?

In a modern fuel injected car, when you close the throttle the fuel injectors also close. So it doesn't use fuel 100% of the time... For example if you have a BMW, Just look at its mileage meter. Coast down a hill and watch the meter. It will go all the way to the highest MPG on the meter while you're coasting. This is because the injectors have been shut off and the engine is using no fuel.

Somebody agree with me. I asked 3 other people and they all agree, yet 2-3 others disagree.

Someone confirm that this kid is a fucking idiot, so I don't feel all alone.

[Ray Smoodiver]

Um wtf? So the whole engine stops when you coast? Is that what he's saying?

[Jarvis]

Edit: I stand corrected. This is bizarre.

[Rigmaster]

ID10T for sure.

So I guess by his logic, there is some magic sensor that senses when the car is in gear and coasting vs. idling at a light or something..... Hmmmmmmm

[Hick]

wow.... where did you find this?

[e30Matt]

wow.... where did you find this?

He's the admin of a forum I moderate on and a member of another forum I surf quite frequently.

[PeaveyBassist]

Does he know that without fuel/air the engine will die? ......

Will

[T.Dot E30]

He is stupid, when you clutch in and coasting the car still has to idle, and even at idle the injectors need to be firing to keep the car running.

Obviously at idle they aren't spraying as much fuel, but they are never completely closed.

[e30Matt]

This is what I told him, but he still fucking INSISTS that the injectors shut off. I told him to call up Bosch and personally ask them.

[PeaveyBassist]

Actually...TECHNICALLY... all injectors are...are solenoids. So technically, yes they are closed sometimes. ;)

Will

[UNHCLL]

I was watching Speed tonight, and a man speaking about 70's era Mustangs said..."they handle better and hold the road better because they weigh more than the previous generation..."


:crazy: :blowup:

[SchnellerVert]

You saw that too? Funny huh.

[UNHCLL]

You saw that too? Funny huh.

Dad has a 67 convert. 289ci auto. Going to restore it and make it a 5 speed.

Red w/ black interior. Should be a fun little setup.

[SchnellerVert]

The auto will sap the life out of it.

[UNHCLL]

hense why we'll be making it a 4 or 5 speed on the floor.

It'll be a weekend toy, just for Sunday drives.

Also have a spare 351 Holman Moody... maybe just drop that in instead. ;)