Why does the Santana's EPC light come on and fail to accelerate?
2 Answers
The following are the reasons and solutions for the Santana's EPC light coming on and failing to accelerate: 1. Dirty throttle body: The fault is caused by a dirty throttle body. In this case, simply cleaning the throttle body and then performing a reset can solve the problem. 2. Intake system fault: There is a leak in the intake system, causing the engine control unit to detect the issue and illuminate the EPC warning light. Replacing the faulty intake system components can resolve the problem. 3. Faulty brake light switch: The brake light switch is malfunctioning. Replace the brake light switch and promptly check if there are any faults in the brake system.
I've been driving my Santana for ages and often run into this issue where the EPC light comes on and the car won't accelerate. Usually, it's a faulty electronic throttle body with too much carbon buildup blocking the valve movement. Or it could be a bad brake pedal switch causing the system to mistakenly think you're braking, automatically limiting power. Another possibility is poor contact in the throttle position sensor wiring, preventing signal transmission. My advice is don't force it—try turning the engine off and restarting first. If the light stays on, quickly scan for trouble codes with an OBD scanner. In most cases, you'll need to remove and clean the throttle body, which costs just a few dozen bucks. If you're not sure how to handle it, stop immediately and get it fixed at a professional shop—don't delay. When EPC acts up, the car goes into protection mode and can't accelerate. Ignoring it can cause more serious engine damage. Regular sensor checks and component cleaning can prevent this hassle.
