What to Do When the RPM Doesn't Increase When Pressing the Accelerator?
2 Answers
The reasons why the RPM doesn't increase when pressing the accelerator include the following: 1. Electronic throttle failure, dirty throttle position sensor, or voltage imbalance. 2. Intake system failure, such as air leaks or blockages in the engine intake system. 3. Fuel system failure, poor-quality gasoline leading to fuel pump burnout, catalytic converter failure, or piston issues. 4. Ignition system failure, such as degraded performance of ignition coils or spark plugs. Methods to check why the RPM doesn't increase when pressing the accelerator include: 1. Check for fuel line blockages or vapor lock, and clean carbon deposits in the fuel system. 2. Inspect throttle carbon buildup, idle position sensor, and air flow meter. 3. Check the fuel filter, fuel pump pressure, and whether the fuel injectors are clogged. 4. Examine the ignition wires, ignition coils, and spark plugs for faults.
I also encountered the issue of the engine not revving up when stepping on the gas pedal a while ago, the car felt sluggish like it hadn't had enough to eat. Later, I found out it was due to carbon buildup, especially the throttle body being clogged with sludge. After cleaning it, the car ran smoothly again. Another time, the air filter hadn't been changed for half a year, choking the engine. I suggest you check these two things first, as you can handle them yourself: the air filter is in the box in the engine compartment, just open it and see if it's dirty; clean the throttle body with carburetor cleaner. If that doesn't work, it's likely an issue with the fuel system—either the fuel filter is clogged or the fuel pump isn't supplying enough fuel, which requires professional tools to diagnose. Remember to regularly use high-grade gasoline from reputable gas stations to reduce carbon buildup.
