Engine Throttle Control Problems

An engine needs air and fuel to make power.

Engine throttle control problems.

Your check engine light is on. In an etc system the control module constantly monitors throttle body performance. The throttle control unit is necessary to ensure that you get the optimum amount of power from your engine. The idle control valve icv and throttle position sensors tps are prone to failure on all 4 3 engines which can result in poor idling engine stalling bad acceleration and other low rpm running problems.

However the gas pedal is used to control the angle of the butterfly valve which regulates the amount of air entering the engine. The electronic throttle control system is the inner workers of the engine that signals the throttle when the pedal is pushed. For most of the 20th century throttle control involved a direct mechanical connection between your accelerator and the engine. If it detects a problem with the throttle body it will turn on the check engine light.

If the throttle body isn t supplying. In most of the cases all of these symptoms will show together making it easier to detect the faulty component. Below are common symptoms of a faulty tps. In some instances the electric signal is disrupted whether due to a loose electrical wire a relay control issue or damage done to a sensor.

The electronic throttle control system within most vehicles is constructed with three important parts. Alternatively the throttle valve will open slightly if you are only driving to keep the air fuel mixture at the optimum level. You notice a lack of power or poor engine performance. A faulty throttle position sensor sends incorrect information to the ecm resulting in various issues in the engine its performance and fuel economy.

In the traditional carbureted engines the throttle body is integrated into the carburettor while in the modern fuel injected engines the throttle body is installed between the air filter and the intake manifold. The accelerator pedal the throttle valve and a control module or pcm. The idle control valve sits on the throttle body and is responsible for adjusting the amount of air that enters the engine. The throttle position sensor tps is part of your vehicle s fuel management system and helps ensure that the correct mixture of air and fuel is delivered to your engine.

The tps provides the most direct signal to the fuel injection system of what power demands are being made by the engine.