P0587 Engine Trouble Code
What is P0587?
When P0587 code appears, first check your gas cap. Pull over safely, ensure it is tight, and inspect for cracks. A loose or damaged gas cap affects fuel-system pressure and emissions. A replacement cap costs about $3–$10. This simple fix can resolve the code and improve fuel economy.
Code Information
| Code Type: | OBD-II Powertrain (P) Trouble Code |
| System: | Powertrain |
| Code: | P0587 |
P0587 Symptoms
Check Engine Light
Illuminated dashboard warning
Engine Stalling
Engine stops unexpectedly or misfires
Performance Issues
Reduced power or acceleration
Starting Problems
Difficulty starting the engine
P0587 Code Structure
Understanding what each digit means in the P0587 powertrain trouble code:
| P | 0 | 5 | 8 | 7 |
|---|---|---|---|---|
| Powertrain Code | Intake Valve Control Solenoid Circuit Low | Fuel Composition Sensor Circuit Malfunction | Ignition/Distributor Engine Speed Input Circuit Malfunction | Shift/Timing Solenoid Malfunction |
How to Fix P0587
Diagnostic Steps:
Oxygen sensors measure exhaust gas oxygen content to optimise air-fuel ratio. This optimisation improves fuel economy and reduces emissions. Sensors degrade over time and require periodic replacement.
Repair Solution:
Power steering pressure switch monitors system operation. If pressure changes are not detected after calibrated speed transitions, this DTC sets. Verify PSP switch operation and check for circuit opens or shorts.
Technical Notes:
P0587 DTCs can be triggered by upstream issues. For example, a dirty MAF sensor may cause incorrect fuel-trim adjustments, leading oxygen sensors to report mixture problems. Address root causes first.
P0587 Description
P0587 engine trouble code is related to Shift/Timing Solenoid Malfunction.
Main Cause
The primary reason for P0587 OBD-II Engine Trouble Code is: Fuel Composition Sensor Circuit Malfunction.