How does drive by wire work? Why is drive by wire throttle laggy and slow? Well… 

On this episode of Motorvate’s DIY garage, we are going to show you how drive by wire works, by make our own drive by wire system using an Arduino Uno clone, an old volume control (variable resistor) and a electronic throttle body from an Infiniti G37 (same as just about every Nissan or Infiniti) 

The traditional way to open and close the throttle was with a steel cable.

Today, just about every car uses electric motors, electronics and wires to control the

throttle.  This is known as a “drive by wire” system or electronic throttle control (ETC)

As a bonus, this episode also proves that a drive by wire system can have VERY quick throttle response.

Link to the Arduino Uno used in this episode:
https://amzn.to/2oxgMtd

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How does an electronic throttle work? Whats inside an electronic throttle? Well…

On this episode of Motorvate’s DIY garage, we are going to show you how an an electronic throttle works and the inside operation.

The one in the video is from an Infiniti G37, but the throttle body is also used on Nissan 370z, Skyline, Fuga  and a few other Infiniti models like EX37, FX37, Q40, Q50, Q70, QX50 and QX70. 

Basically any Nissan or Infiniti with a 3.7 litre v6! 

(For the motor geek: the throttle body is the same on the VQ37VHR and the VQ35HR. These engines were used for the last two years of the Nissan 350Z and Infiniti G35)

The video also explains why there are no power gains when the coolant lines are removed from the throttle body, aka “throttle body bypass” or “throttle body coolant bypass”.

As a bonus, the video also explains what the electronic throttle is doing when the “Throttle Valve Closed Position Learning” is being performed by the ECU.