Matt Ion wrote:
> Richard Blaine wrote:
>> "Andy" <blueflame1965@hotmail.com> wrote in message
>> news:09OdndWeBLxH2MranZ2dnUVZ8uqdnZ2d@pipex.net...
>>> Can you tell me what "Drive by Wire" is please, on new honda accord
>>> 2.2i-CTDi, thanks.
>>>
>>> Haven't heard of that, cheers.
>>>
>>> AE
>>
>> Control of something by electrical impulse over a wire rather tugging
>> on a cable-- like in the old days there was one from your gas pedal to
>> the butterfly in the carburetor that opened it wider when you stomped
>> down. When you tromp on the gas pedal these days, it sends a signal to
>> the fuel injector and fuel pump to step up the flow.
>
> In most cars, there is still a cable that attaches to the butterfly in
> the throttle body. Injector operation is controlled by the ECU based on
> the airflow measured through the throttle body or manifold, and assorted
> other sensors' input, rather than direct input from the pedal.

none of the above guys. drive by wire is simply having the throttle
operated by a computer controlled servo. it means there is no
mechanical connection to the pedal any more - just a sensor that acts as
input for the ecu, and the ecu uses that in conjunction with a bunch of
other info to calculate how wide to open the throttle. it's especially
advantageous for automatics as it means you can de-throttle when the
gear changes. injection really has nothing to do with it.