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OBD Code P2387

EGR Sensor E Circuit Low

CodeP2387
DescriptionEGR Sensor E Circuit Low
SystemIgnition

What Does P2387 Mean?

EGR Sensor E Circuit Low. This diagnostic trouble code (DTC) is stored when the vehicle's onboard computer detects an issue with the ignition.

Code Breakdown

P = Powertrain code

2 = Manufacturer-specific

How to Fix P2387

Follow these diagnostic steps to identify and resolve the issue. Always start with the simplest checks before moving to more involved repairs.

  1. Inspect spark plugs for wear, carbon fouling, oil deposits, or incorrect gap. Replace as needed.
  2. Test ignition coil(s) with a multimeter for proper primary and secondary resistance.
  3. Check ignition coil connector and wiring for damage, corrosion, or poor connections.
  4. Inspect the distributor cap and rotor (if equipped) for cracks or carbon tracking.
  5. Verify the crankshaft position sensor is providing a proper signal to the ignition module.
  6. Clear codes and test drive under various load conditions.

Note: These are general diagnostic guidelines. Some vehicles may have model-specific procedures. Always consult your vehicle's service manual for exact specifications and torque values. If you are not comfortable performing these steps, visit a qualified mechanic.

Frequently Asked Questions

Is P2387 serious?

The severity depends on the underlying cause. Some triggers for P2387 are minor (like a loose gas cap), while others may indicate a more significant problem. We recommend having the code diagnosed with a proper scan tool to determine the exact cause before deciding on urgency.

Can I clear P2387 myself?

You can clear any OBD-II code with a code scanner or by disconnecting the battery for 15-30 minutes. However, clearing the code without fixing the underlying problem will cause it to return — usually within one or two drive cycles. If the code triggered the check engine light, the light will come back on. Fix the root cause first, then clear the code.

How much does it cost to fix P2387?

Repair costs vary widely depending on the root cause. Some fixes are free (like tightening a gas cap) while others can cost several hundred dollars (like replacing a catalytic converter or oxygen sensor). A proper diagnosis with a professional scan tool — not just reading the code — is the first step to getting an accurate repair estimate. Many auto parts stores offer free code reading, but a thorough diagnosis usually requires a mechanic.

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