P2A87 – BMW DTC

BMW DTC P2A87 – Alternative Fuel Pump ‘C’ Compression Stroke Valve Control Circuit/Open

DTC P2A87 meaning on BMW

DTC P2A87 on a BMW refers to the Alternative Fuel Pump ‘C’ Compression Stroke Valve Control Circuit/Open. This diagnostic trouble code indicates that there is an open circuit or a fault in the control circuit for the compression stroke valve of the alternative fuel pump ‘C’.

BMW DTC P2A87 symptoms

Symptoms of BMW DTC P2A87 may include:

• Check Engine Light illuminated on the dashboard
• Reduced engine performance
• Engine misfires
• Difficulty starting the engine

BMW DTC P2A87 causes

Common causes of BMW DTC P2A87 include:

• Faulty compression stroke valve
• Open or short circuit in the control wiring
• Defective fuel pump ‘C’
• Faulty engine control module (ECM)

BMW DTC P2A87 seriousness

Ignoring BMW DTC P2A87 can lead to potential engine performance issues and may result in further damage to engine components. It is recommended to address this issue promptly to prevent any long-term damage.

How to diagnose DTC P2A87 on BMW

To diagnose BMW DTC P2A87, follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes from the engine control module.
2. Inspect the wiring harness for any visible damage or loose connections.
3. Test the compression stroke valve for proper operation.
4. Check the fuel pump ‘C’ for any faults.
5. Perform a thorough inspection of the ECM for any signs of malfunction.

How to fix DTC P2A87 on BMW

To fix BMW DTC P2A87, consider the following:

1. Repair or replace any damaged wiring in the control circuit.
2. Replace the faulty compression stroke valve if necessary.
3. Inspect and replace the fuel pump ‘C’ if it is found to be defective.
4. If the ECM is faulty, consider reprogramming or replacing it.

How to erase DTC P2A87 on BMW

To erase BMW DTC P2A87, follow these steps:

1. Use a diagnostic scanner to clear the fault codes stored in the ECM.
2. After making the necessary repairs, drive the vehicle to allow the ECM to relearn the system.
3. Perform a final scan to ensure that the DTC P2A87 code has been successfully erased.

Recommended tools & DTC Scanners for BMW

Best Diagnostic App for modern BMWs: BimmerLink

Recommended Bluetooth adapter for Bimmerlink: OBDLink CX

Cable adapter for Bimmerlink: Enet Cable USB Type C

For older BMWs we recommend: Autel AutoLink AL319 (2024 version)

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

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