2009 Pontiac G5 Support Question
2009 Pontiac G5 Support Question
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Question posted by Stephaniemcmillen on July 9th, 2022
Why Would My Reduced Engine Speed Light Come On?
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Answer #1: Posted by SonuKumar on July 9th, 2022 11:01 PM
SonuKumar
Member since:
May 9th, 2021 Points: 16,508,750
Member since:
May 9th, 2021 Points: 16,508,750
What does it mean when it says reduced engine speed?
"Reduced Engine Power" Message
In most cases, the Engine Power Reduced warning indicates that your car's performance has been intentionally limited. Your car's primary computer, often known as the powertrain control module (PCM), triggers Reduced Power Mode when it detects a system failure.
https://www.carparts.com/blog/what-triggers-reduced-engine-power/
What causes the reduced power engine light to come on?
The reduced engine power light comes on when the vehicle's computer detects a fault in any of the systems that allow the engine to run optimally, such as airflow sensors, throttle sensors and oxygen sensors.
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