What is the reason why the Reiz cannot accelerate when the throttle is floored?

[McEmersyn]

The Reiz's inability to accelerate when the throttle is floored is mainly caused by a dirty or voltage-imbalanced throttle position sensor, throttle pedal malfunction, clogged fuel system, or ignition system failure. The engine's fuel system is also crucial. If low-quality gasoline is used, it may lead to fuel pump burnout, catalytic converter failure, or piston malfunction. The C1 gear matches the speed as follows: 1. First gear: Used for normal starts or climbing very steep slopes, with speeds generally around 10 km/h; 2. Second gear: Used as a transition gear after starting or for low-speed driving, with speeds generally around 20 km/h; 3. Third gear: Used at speeds between 20-40 km/h, commonly used for city driving; 4. Fourth gear: Used at speeds between 40-60 km/h; 5. Fifth gear: Used at speeds above 60 km/h.

[DanielaDella]

My Mark X recently had the issue of no response when stepping on the accelerator. While driving on the highway, the car was roaring but not speeding up. There could be several reasons: the spark plugs might be worn out, affecting ignition and making the engine weak; the air filter could be too dirty, blocking the intake like a person having difficulty breathing; or the fuel injectors might be clogged, cutting off fuel supply. I checked myself and found the fuses intact, the transmission fluid normal, but discovered insufficient fuel pump pressure causing the lack of acceleration. Such problems require professional diagnosis with a scanner to read the fault codes and timely handling to avoid engine damage. Regular maintenance should pay attention to these components, and developing a habit of periodic checks can prevent issues, especially since older cars are more prone to such problems.

[McAshlyn]

In this line of work, we often deal with acceleration issues in the Reiz. Common causes include aging ignition coils leading to ineffective spark plugs, clogged air filters restricting air intake, and dirty fuel filters in the fuel system causing insufficient fuel supply. Additionally, delayed gear shifting in the transmission or worn clutches can also affect power delivery. It's recommended that owners start with basic checks, such as inspecting the air filter for blockages and checking if the spark plugs are burnt. These are simple operations that can be tried on their own. If the problem persists, it's necessary to check the fuel pump pressure or potential oxygen sensor failures. Early detection can save significant costs, as prolonged neglect can damage the engine. Prioritizing safe driving is always the best approach.