Deceleration Fuel Cut Off
 

Does the electronic fuel injection on my 1.2 i-DSI Honda Jazz/Fit GD-5 have a "shut off on overrun" and if so, above what rpm does it work?

I'm sure it does, and it normally starts spraying fuel around 900-1500 rpm. If you have it in gear and coast down, you can feel the jerk as it kicks back in.

Thanks. I take it I am more likely to feel the jerk in a lower gear?

Yes, but it'll also be at a lower speed in a lower gear. You should still be able to feel it in a higher gear.

Use a shallow sloping hill and top gear, you'll feel exactly when the fuel comes back in.

I like checking in first gear. Much easier to feel the fuel kick back in. Also safer to be staring at the tach at lower speeds.

Tried it in third, this morning, and though revs dropped down from 2500 to stalling I felt absolutely nothing!

Was the engine warmed up? If you're still in high idle mode, it won't kick in.

It had warmed up and tick-over was about 700 rpm, but I'll try it again after a good few miles when engine is really hot.

I have a 2000 accord automatic transmission. I use the Torque app with a blue tooth OBD2. Torque has a fuel consumption display. It shows the same amount if I'm coasting in gear or in neutral so it looks like I don't have DFCO. Any other way to see if my car has DFCO