What is Doosan DX215-9C Fault Code E000108-00 (P2227)?

Fault Code E000108-00 (P2227) indicates a Barometric Pressure Sensor Circuit Range/Performance Problem in the Doosan DX215-9C excavator's engine control system. This diagnostic trouble code (DTC) is triggered when the Engine Control Module (ECM) detects that the barometric pressure sensor is providing readings outside the expected range or showing inconsistent performance compared to other sensor data.

The barometric pressure sensor measures atmospheric pressure to help the ECM calculate proper air density for fuel injection timing and quantity. On the DX215-9C's Doosan DL08 engine, this sensor is critical for maintaining optimal combustion efficiency, emissions compliance, and power output. When this code appears, the ECM may use default values, potentially reducing engine performance and fuel economy, especially at higher altitudes or varying atmospheric conditions.

Common Symptoms

• Check Engine Light (CEL) or malfunction indicator lamp illuminated on the instrument cluster
• Reduced engine power or noticeable loss of throttle response, particularly during high-load operations
• Rough idling or irregular engine RPM fluctuations when the machine is at rest
• Increased black smoke from the exhaust due to improper fuel-to-air ratio calculations
• Poor fuel economy as the ECM compensates with conservative fuel mapping strategies

Potential Causes

The most common technical causes for this fault code on used DX215-9C excavators include:

• Faulty barometric pressure sensor due to internal component degradation or contamination from dust and debris
• Damaged or corroded wiring harness connections at the sensor plug, especially common near the engine valley where heat and vibration cause wear
• Vacuum hose leaks or blockages affecting sensor reference pressure (if applicable to sensor design)
• ECM software calibration issues or corrupted data requiring reprogramming
• Intermittent electrical shorts in the sensor circuit caused by harness chafing against engine components
• Poor ground connections at the sensor or ECM mounting points due to corrosion buildup over years of operation

How to Troubleshoot and Fix Code E000108-00 (P2227)

Step 1: Visual Inspection Locate the barometric pressure sensor (typically mounted on or near the intake manifold or ECM). Inspect the sensor connector for corrosion, bent pins, moisture intrusion, or physical damage. On used excavators, check for harness rubbing points along the engine frame where insulation may be worn through.

Step 2: Electrical Testing Using a digital multimeter, check the sensor's power supply voltage (typically 5V reference) and ground circuit with the ignition on, engine off. Measure sensor signal output voltage while comparing to atmospheric pressure specifications in the Doosan service manual. Check for continuity and resistance values (typically open circuit when disconnected). Use G-Scan or Doosan diagnostic software to view live sensor data.

Step 3: Component Testing and Replacement If voltage readings are correct but sensor output is erratic, replace the barometric pressure sensor with a genuine Doosan or OEM-equivalent part. Clear fault codes using diagnostic software and perform a road test under load. If issues persist, inspect the ECM wiring harness for internal breaks and consider ECM reprogramming or replacement if sensor replacement doesn't resolve the code.

Critical for Used Equipment: Before replacing expensive components, thoroughly clean all electrical connectors with contact cleaner and apply dielectric grease to prevent future corrosion—a common issue in older machines.

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Disclaimer: This guide provides general troubleshooting information. Always consult the official Doosan service manual and consider professional diagnostic assistance for complex electrical issues or if you lack proper diagnostic tools.