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Hello everyone!




I have a question...does the 1997-2001 Toyota Camry series have a fuel injection cutoff system while coasting?...

If so, does it occur while coasting in gear or neutral???



This would really help me to figure out if coasting is really saving me fuel mileage or not.






Thanks!:)

-LSS

Whether or not your vehicle has fuel cut (I'm not sure at the moment), coasting in neutral will net you higher MPG, with the exception of coasting in drive with the intent to slow down (approaching traffic, stop light, stop sign, etc). With an automatic, your best bet is going to be DWL (driving with load), and coasting when you want a general slow down or if you are on a downhill grade (enough to maintain momentum).

Fuel cut only occurs when the transmission is in drive, as the transmission keeps the engine internals spinning without the help of fuel, but the engine braking is greater, so you'll decelerate faster.

Thank you!


My commute is 12.5 miles one-way, with a few small inclines and 1 minor overpass...but 9 of those 12.5 miles are highway.


Will shifting to neutral while coasting AND idling at a stop, wear out and hurt my transmission?



I'm not sure which coasting technique( N or OD) will help my FE better for my situation...



Thanks again!

-LSS




Whether or not your vehicle has fuel cut (I'm not sure at the moment), coasting in neutral will net you higher MPG, with the exception of coasting in drive with the intent to slow down (approaching traffic, stop light, stop sign, etc). With an automatic, your best bet is going to be DWL (driving with load), and coasting when you want a general slow down or if you are on a downhill grade (enough to maintain momentum).

Fuel cut only occurs when the transmission is in drive, as the transmission keeps the engine internals spinning without the help of fuel, but the engine braking is greater, so you'll decelerate faster.

No, shifting to and from neutral should not hurt the transmission. Ideally, you should be shutting you car off if you're going to be stopped for longer than 10 seconds, and restarting before the light changes. Make sure to keep your speeds down on the highway, and at the posted minimum if you can stomach it. Until we're sure your car has DFCO, coasting in N is better.

Ok awesome! Thank you. I was just really worried about damaging my transmission.



How will I find out if I do have Dfco???

I have my Ug now, and it says it can tell if I have Dfco. All I need to do is find a good place to install it.