Engine-CodesGeneric – P1160

P1160 Code - Return Spring Failure

Quick Answer

The P1160 diagnostic trouble code indicates a return spring failure within the vehicle's throttle control system. Common causes include Wear and tear on the return spring over time, Contamination or debris affecting the spring's function, Misalignment or improper installation of the return spring. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1160 indicates Return Spring Failure.
Common causes
Common causes include Wear and tear on the return spring over time, Contamination or debris affecting the spring's function, Misalignment or improper installation of the return spring.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code P1160 Description

The P1160 diagnostic trouble code indicates a return spring failure within the vehicle's throttle control system. The return spring is responsible for ensuring that the throttle valve returns to its idle position after the driver releases the accelerator pedal. When this return spring fails, it can lead to issues with throttle response, engine performance, and fuel efficiency. If left unaddressed, it can potentially cause further damage to the throttle system and other related components.

OBDII Code P1160 - Return Spring Failure
P1160 Code - Return Spring Failure

Common Causes of P1160

  1. Wear and tear on the return spring over time
  2. Contamination or debris affecting the spring's function
  3. Misalignment or improper installation of the return spring
  4. Electrical issues within the throttle control system
  5. Mechanical damage to the spring or related components

Symptoms of P1160

  1. Reduced acceleration or sluggish throttle response
  2. Engine stalling or surging
  3. Difficulty maintaining a steady speed
  4. Check Engine Light illuminated
  5. Increased fuel consumption

How to Fix P1160

  1. Diagnose the issue by checking the return spring and related components for damage or wear.
  2. Replace the faulty return spring with a new one that meets the manufacturer's specifications.
  3. Inspect and clean the throttle control system to ensure proper functioning.
  4. Test drive the vehicle to verify that the throttle response and engine performance have returned to normal.
  5. Clear the diagnostic trouble code and reset the vehicle's computer system to ensure the issue has been resolved.

Cost to Fix P1160

The cost of repairing a return spring failure can vary depending on the make and model of the vehicle, as well as the labor rates in your area. On average, the cost of replacing a return spring and addressing related issues can range from $150 to $300. Additional costs may be incurred if other components need to be repaired or replaced. It is recommended to obtain quotes from local auto repair shops to get a more accurate estimate for your specific situation.

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Code P1160 Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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