Engine Throttle Control Problems

If the throttle body isn t supplying.

Engine throttle control problems.

Your check engine light is on. 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. For most of the 20th century throttle control involved a direct mechanical connection between your accelerator and the engine.

The idle control valve sits on the throttle body and is responsible for adjusting the amount of air that enters the engine. The throttle controller is controlled electrically as opposed to the older mechanical cables that ran from the throttle pedal to the throttle body. However the gas pedal is used to control the angle of the butterfly valve which regulates the amount of air entering the engine. 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.

A faulty throttle position sensor sends incorrect information to the ecm resulting in various issues in the engine its performance and fuel economy. The electronic throttle control system within most vehicles is constructed with three important parts. If it fails you will face countless problems in your daily driving. If it detects a problem with the throttle body it will turn on the check engine light.

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. The tps provides the most direct signal to the fuel injection system of what power demands are being made by the engine. You notice a lack of power or poor engine performance. An engine needs air and fuel to make power.

The electronic throttle control system is the inner workers of the engine that signals the throttle when the pedal is pushed. In most of the cases all of these symptoms will show together making it easier to detect the faulty component. But as emissions control and fuel economy regulations became more strict computers were developed to provide more precise metering of the air fuel mixture that goes into the engine. Alternatively the throttle valve will open slightly if you are only driving to keep the air fuel mixture at the optimum level.

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.