Fly By Wire - Page 8

 


Some euro cars actually come (or came) with an ABS-off switch.


Dave

 


Toyota's throttle problem is a mechanical one, not electrical.  Not
enough WD40.

JayC

 

Dean H schrieb:

Well, over here in Diesel country most if not all vehicles are fly by
wire for years now.  The '05 LandRover Discovery of my Mother has no
throttle cable anymore.  The arbitrarily wandering idle speed was a
miracle for an electronically controlled engine, until a white haired
chief mechanic smiled, whipped out some WD40 and "greased" the
accelerator paddle. Problem gone.
Even my 10 years old VW Bus has drive by wire. (hence one can enable the
optional cruise control functionality via the OBD plug :)

This among other things is rumored to be the reason why all brake light
switches are twins, with both cable pairs routed independently. They
not only operate the brake lights but are used as panic input to kill
the engine, should the accelerator get stuck.  An easy test: right foot
on the accelerator, left one very gently onto the brake, as soon as the
brake switch comes on the engine is instantly killed (until right above
idle).

The Toyota issue is similar to Mom's LandRover a mechanical one though.

But the wipers of my VW Bus from time to time switch from interval mode
to literally permanently on. They then ignore the wiper lever's
position, happily wiping on when the lever is at "off".
Cycling the ignition helps mostly, last resort: fuse out and back in.


Rowdy

 




it is a VW! What do you expect? I had three of them.

I had a dune buggy with a 1500cc beetle engine. Nice car for a 19
y.o., I had fun, despite having to replace every thing mechanical,
including the engine (I then put a newer 1600cc dual carburetor, just
to make the already poor mileage drop like if I had drilled a hole in
the tank). Lucky me beetle/dune buggy parts - except the pricey
balloon tires - are very very cheap.

The '91 had so much electrical problems that a car electrician
suggested I needed to re-do the entire wiring... When it was raining,
I'd rather ride my bike, the wipers only worked when they wanted to.

Then I got a 2001 with throttle-by-wire and was less than impressed.
That piece of crap turned lots of my hairs white. It had a problem
that it would hesitate like it was flooded with gasoline. I spent a
ton of money fixing it. Dumb cheap design *without* check engine
light, but had an OBD II port. When mechanic plugged the scan, *every*
sensor was reported faulty...

After almost one year I found the problem. Previous owner installed an
aftermarket alarm and cut one of the wires going to the ECU and didn't
solder it, just twisted the wire ends and covered with electrician's
tape. The wire touched the car body, and ECU thought engine wasn't
getting any gas and flooded it... Got rid of it and got myself a
decent car from Toyota and it is amazing how it doesn't require weekly
mechanic visits like my previous VWs...


-- T

 


See?  WD40 really CAN fix everything.

JayC