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• 136.

  What are symptoms of a bad throttle position sensor?

  A faulty throttle position sensor (TPS) can cause a variety of vehicle symptoms, including:
  ① Poor acceleration: If the TPS is not working properly, it may not communicate the correct position of the throttle to the engine control unit (ECU), resulting in slow or inconsistent acceleration.
  ② Idle speed problem: TPS failure can cause the engine idle speed to fluctuate or become unstable. This may cause the engine to stall or idle smoothly.
  ③ Surge or shudder: Abnormal signals from the TPS may cause the engine to surge or shudder during acceleration, especially at low speeds or when transitioning from a stop.
  ④ Stalling: In certain circumstances, a faulty TPS may cause the engine to stall, especially when the vehicle is stopped or idling.
  ⑤ Poor fuel economy: If the TPS sends incorrect signals to the ECU, it will affect the air-fuel mixture, resulting in reduced fuel efficiency.
  ⑥ Check Engine Light: A TPS failure will trigger the Check Engine Light (CEL) on the dashboard. This is usually accompanied by a Diagnostic Trouble Code (DTC) related to the TPS or throttle system.
  ⑦ Difficult shifting (automatic transmission): In vehicles equipped with automatic transmission, TPS failure may cause erratic shift patterns or difficult shifting.
  These symptoms may vary depending on the severity of the TPS problem and other factors affecting vehicle performance. If you suspect a problem with your throttle position sensor, it is recommended that a qualified mechanic perform a diagnosis and repair to prevent further damage to your vehicle.
  
• 137.

  Will a bad throttle position sensor throw a code?

  Yes, a bad throttle position sensor (TPS) often triggers a diagnostic trouble code (DTC) in a vehicle's on-board diagnostic system. The specific codes associated with a faulty TPS may vary, depending on the make and model of the vehicle and the severity of the problem.
  
  If you suspect a problem with the throttle position sensor, your vehicle must be diagnosed by a qualified mechanic or technician. They can use specialized diagnostic tools to retrieve stored fault codes and perform further tests to determine the exact cause of the problem. Prompt diagnosis and repair can help prevent further vehicle damage and ensure proper engine performance.
  
• 138.

  What happens if you reset your oil life?

  Resetting the oil life indicator or oil change reminder in your vehicle after an oil change simply recalibrates the system to begin tracking the next oil change interval from that point on.
   When you reset the oil life indicator, the following will happen:
  ① Clear reminder: Resetting the oil life indicator clears the current oil change reminder from the vehicle system. This means that any notifications or warnings related to previous oil change intervals will no longer be displayed.
  ② Restart: After resetting the oil life indicator, the system restarts and calculates the remaining oil life based on factors such as engine operating conditions, driving habits, and mileage since the reset point. This allows the system to accurately track when the next oil change is due.
  ③ Accurate maintenance reminder: Resetting the oil life indicator ensures that the vehicle's maintenance reminder system provides accurate notifications for future oil changes. This helps you with routine maintenance and ensures optimal engine performance and service life.
  Overall, resetting the oil life indicator is standard procedure after completing an oil change. It helps maintain the accuracy of your vehicle maintenance reminder system and ensures you receive timely notifications for future oil changes, helping to properly maintain your vehicle's engine.
  
• 139.

  Do you have to reset oil life after oil change?

  Yes, it is usually necessary to reset the oil life indicator or oil change reminder system in your vehicle after an oil change. Many modern vehicles are equipped with an oil life monitoring system that calculates the remaining useful life of the engine oil based on factors such as engine operating conditions, driving habits and mileage.
  Resetting the oil life indicator ensures the system accurately tracks the time between your next oil changes. Failure to reset the indicator may result in inaccurate oil change reminders or notifications.
  The procedure for resetting the oil life indicator varies depending on the make and model of your vehicle. It's usually outlined in the vehicle's owner's manual or can be found through online resources specific to your vehicle's manufacturer. In some cases, it may involve pressing a combination of buttons on the dashboard or using a diagnostic tool to reset the system. If you're unsure how to reset the oil life indicator, consult your vehicle's owner's manual or seek assistance from a qualified mechanic or dealership.
  
• 140.

  What is the most common cause of the ABS light to come on?

  There are a number of reasons why the ABS (anti-lock braking system) light can come on, but one of the most common reasons is that one of the wheel speed sensors is faulty. Wheel speed sensors are an important part of the ABS system because they monitor the rotational speed of each wheel and provide data to the ABS control module.
  Here are some common reasons why the ABS light comes on:
  ① Wheel speed sensor failure: A wheel speed sensor failure may cause the ABS light to come on. This could be due to sensor damage, corrosion, or electrical issues. If the ABS module receives an incorrect or erratic wheel speed signal, it may interpret it as a malfunction and illuminate the ABS light.
  ② Broken or damaged wiring: Over time, the wiring harness that connects the wheel speed sensor to the ABS control module can become damaged or corroded. This can cause intermittent connection issues or complete signal loss, triggering the ABS light.
  ③ ABS sensor ring is damaged: Some vehicles have toothed ABS sensor rings on the wheel hubs. If these rings are damaged or corroded, they may not provide accurate wheel speed data to the sensors, causing the ABS light to come on.
  ④ ABS control module failure: In some cases, the ABS control module itself may fail, causing the ABS light to illuminate. This could be due to internal component failure, software glitches, or electrical issues.
  ⑤ Low brake fluid level: Some vehicles are equipped with a brake fluid level sensor integrated into the ABS system. If the brake fluid level falls below a certain threshold, it triggers the ABS light to illuminate as a warning to check the brake fluid level.