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What Causes Throttle Control Failure? [Solved]

One of the main causes of a malfunctioning throttle body is internal contamination. Due to the contamination accumulated in the throttle body, the throttle valve can no longer move properly, causing problems with the control of the air supply.

Bad Throttle Position Sensor - Symptoms Explained | Signs of failing throttle position sensor (TPS)

Symptoms

Bad Throttle Valve Body - Symptoms Explained | Signs of dirty or failing throttle body in your car

Throttle

TechTips #1 – Electronic Throttle Body Troubleshooting

Your customer comes in with a “poor idle” concern. The Check Engine Light may or may not be illuminated. Could this be a …