To help determining whether the throttle valve control motor is functioning correctly different deviations from the example signal are mentioned along with possible causes. With a lab scope a throttle valve control motor signal voltage is measured with the key on and engine off.
Ls2 Cable Driven Throttle Body Measurement Third Generation
Throttle body measurement. A throttle is the mechanism by which fluid flow is managed by constriction or obstruction. The signal from the actuator is shown and can be downloaded. An engines power can be increased or decreased by the restriction of inlet gases by the use of a throttle but usually decreased. Another way to look at this is the throttle body is sized for max airflow and rpm of the engine displacement with some tolerence. The throttle body temperature sensor sorry it doesnt have a cool acronym like the tps is also attached to the throttle body and collects data to permit an efficient burning of fuel. This results in a more gradual response that drivers who are not interested in performance would value because they equate it with smooth drivability.
Sent from my iphone using tapatalk. We first present the typical requirements and trends seen for this application. Throttle position sensing throttle position sensing with linear hall sensors application note 3 v 10 2008 07 1 introduction this application note is dedicated to magnetic sensor solutions for throttle position sensing. Most auto manufacturers measure airflow at peak rpms then choose a throttle body diameter to ensure that 50 throttle will produce exactly 50 airflow. If the air flow is being measured by an air meter then the tb area vs throttle angle will set the airflow volume and speed thru the air meter. Throttle body size just checked the inside diameter of my throttle body and found it was almost 96 mm.
Is this a stock piece or after market. Place a measuring tape against the inlet hole in the throttle body and take a measurement of the inside of the throttle body inlet. Specifically its designed to measure the temperature of the airfuel mixture that flows through the throttle body into the intake manifold and eventually to the combustion chamber. Write the measurement down on a piece of paper. This measurement is known as the inlet diameter and is a good measurement to have if you are fitting a cold air intake or supercharger to your current engine. The term throttle has come to refer informally to any mechanism by which the power or speed of an engine is regulated such as a cars accelerator pedal.
These parameters should be in somewhat a balance. Weight kg 095 095 095 11 11. The throttle body is designed to control the fresh air of spark ignition engines in combination with an electronic throttle control system. Etb applications with flex fuel cng and lpg are permissible if injec ted in the air flow after the throttle body.
Gallery of Throttle Body Measurement
