Symptoms of a Bad or Failing Throttle Body and When to Upgrade Your Entire Fuel System

Some common symptoms of a bad or failing throttle body include:

1. Reduced throttle response: The throttle takes longer to respond when you press the accelerator pedal.
2. Rough idle: The engine may shake or vibrate at idle, and the throttle may surge up and down.
3. Check Engine Light: The Check Engine Light may come on, indicating a malfunction in the throttle control system.
4. Poor fuel economy: Your car may experience decreased fuel economy due to an inefficient throttle body.
5. Misfires: The engine may misfire due to an incorrect air/fuel mixture.

When is it time to upgrade the entire fuel system?

In some cases, throttle bodies are not enough and a larger upgrade of the fuel system may be necessary. This usually applies when vehicles have more than one throttle body as well as when they're running high-performance engines. Some signs that you may need to upgrade the entire fuel system include:

1. Poor throttle response, even after throttle body upgrades.
2. Lack of power or torque from the engine.
3. Inconsistent performance at higher RPMs.