P1160
Return Spring Failure
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–28 (est.)
Symptoms
- Unstable engine operation at idle
- Acceleration problems
- Increased fuel consumption
- Check Engine Light Illuminates
- Possible misfires
Causes
- Worn or broken return spring
- Corrosion of the mechanism in which the spring is installed
- Dirt or debris getting into the mechanism
- Incorrect spring installation after repair
- Spring deformation due to overheating
How to Fix
- Conduct a visual inspection of the return spring
- Check the mechanism for corrosion and contamination
- Replace the return spring if necessary
- Check system operation after replacement
- Reset the error code and test drive