2005-2014 Mustangs Discussions on the latest S197 model Mustangs from Ford.

Drive By Wire

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Old Jun 13, 2006 | 12:21 PM
  #31  
elektra's Avatar
elektra
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From: ST Louis, MO
Default RE: Drive By Wire

ORIGINAL: davidb123456

So I guess the upshot is, sorry if I sounded rude. I'm sure you're not damaging your car one bit. It's just a very strange driving technique to me - but apparently not so strange to other people who posted after.
No worries David, I did not take it harsh at all but more as a different viewpoint and someone giving a helping hand. While my driving may not seem logical to some, I travel down a small hill (more like a mound) and then my stang will coast the last jaunt of the trip and I will hit about 20-25 by the time I hit the driveway for my work.

My question is not if this is the most ethical way of driving, rather why would ford rev the engine when in nuetral? It does nothing! that is all. When I leave it in gear It better not rev however it wants or that would be some scary driving trips!

Thanx for all who gave their $0.02!
Old Jun 13, 2006 | 04:22 PM
  #32  
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Default RE: Drive By Wire

Could be hanging the revs anticipating you putting it into a gear. Could be bad for the synchros to go from 850rpms to 3000rpms when you finally put it into gear. Could be throttle lag pulling from idle to running rpms. Could be illegal to cruise in neutral in your state.

It's not the throttle-by-wire, my Ford Focus has a throttle cable and does the same thing.

Copy this >>>"coasting in neutral"<<< and paste it into a google search...first result states:
"Coincidentally, coasting in neutral is illegal in many states."

Could I say "could" more? I could.
Not to be an *** or "mr. grammer", but it's coasting...not costing.
ex: Time costs money while coasting down hills.

stay safe...back to work I go...
Old Jun 13, 2006 | 05:39 PM
  #33  
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elektra
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Default RE: Drive By Wire

You COULD say tomato I WILL say tamato!
Old Jun 13, 2006 | 06:01 PM
  #34  
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olym4gery
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Default RE: Drive By Wire


ORIGINAL: elektra

you say tomato i say tamato!
Coincidentally, I was driving around 40 mph in 5th gear, 1250 rpms.

What rpm's is your engine, out of gear, turning at 40 mph?

Why do you suppose that is?

I think "fly by wire" does things to keep engines from being damaged by abrupt, or unusual throttle inputs.

Old Jun 13, 2006 | 06:05 PM
  #35  
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elektra
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From: ST Louis, MO
Default RE: Drive By Wire

ORIGINAL: olym4gery


ORIGINAL: elektra

you say tomato i say tamato!
Coincidentally, I was driving around 40 mph in 5th gear, 1250 rpms.

What rpm's is your engine, out of gear, turning at 40 mph?

Why do you suppose that is?

I think "fly by wire" does things to keep engines from being damaged by abrupt, or unusual throttle inputs.

@ 40mph it will sit at about 1750-1800 rpms. This is the funny part. the slower I go the Higher the RPMs get and max out at 2500. The engine goes back to idle when the clutch in pushed down.

olym4gery I can not find one reason why this is doing this at all. The service guy is dumbfounded and we ran out of time when he looked at it last friday. I have an appointment this week to see whats up and hopefully a reflash!
Old Jun 13, 2006 | 06:15 PM
  #36  
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elektra
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From: ST Louis, MO
Default RE: Drive By Wire

Ok so Now I went out and completed the recalibration for the gas pedal and it fixed most of the issues. Instead of it climbing to 2500 it stops at 1500 and once stopped it will sit at 1500 for about 15 seconds before it notices that it is stopped.
Old Jun 13, 2006 | 06:19 PM
  #37  
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olym4gery
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Default RE: Drive By Wire

Now try driving with it in gear......................................

I suspect your driving style, and how the computer expects people to drive are in conflict..........................
Old Jun 13, 2006 | 06:33 PM
  #38  
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elektra
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From: ST Louis, MO
Default RE: Drive By Wire

ORIGINAL: olym4gery

Now try driving with it in gear......................................

I suspect your driving style, and how the computer expects people to drive are in conflict..........................
Driving in gear resaults with the rpms at about 1250-1300 or so. I think everyone your missing my point here. Whe does the car have control of my gas pedal??? If I have to stop fast for the light and dont have time to shift through 4-5 gears there is no point in using them. But now I am sitting at the light next to a cop with my engine going nuts like I want to race him. WTF! Do you see my point??

And just to let everyone know before people start saying that you should use all the gears, my car stopped perfectly not using gears. Better then any automatic car i ever had!
Old Jun 13, 2006 | 06:52 PM
  #39  
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sonicblue05
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Default RE: Drive By Wire

hey man,
try resetting the computer (unhook positiove battery cable for five minutes)
seemed to help mine, after i changed exhaust it idled too low.........so i reset it and now its back to normal
Old Jun 13, 2006 | 06:57 PM
  #40  
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olym4gery
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Default RE: Drive By Wire

Why does your car's computer "double check" your throttle work?

To keep people from going from WOT at redline to 0 throttle. So the car smooths the engines "wind down" to keep it from "starving" or getting bad A/F ratios from the sudden throttle cut.

To anticpate a shift, so instead of going 4000-750-3000 rpms the car goes 4000-2500-3000, smoothing the shift and limiting "drive line shock" during the shift.

Your car should stop pretty good with a manual transmission, in or out of gear. Sometimes cars with AT are still pushing when you don't want them to.

I still think your driving style has "confounded" your computer. Try driving in gear instead of coasting for the next coupla days, see if that straightens out the issue.



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