What is XCMG XE490D CM2150 Fault Code 1713?

Fault Code 1713 indicates an Intake Manifold 1 Pressure sensor circuit voltage is above the normal operating range on the Cummins CM2150C or CM2150D engine installed in XCMG XE490D excavators. This diagnostic trouble code (DTC) triggers when the Engine Control Module (ECM) detects a high voltage signal from the Intake Manifold Pressure (IMP) sensor, typically exceeding 4.5 volts when normal operation should range between 0.5-4.5 volts.

This code is critical for the CM2150 engine's performance because the IMP sensor directly influences fuel delivery calculations, turbocharger boost control, and emissions management. When this sensor reports inaccurate high-voltage data, the ECM cannot properly manage air-fuel ratios, potentially causing poor engine performance, increased fuel consumption, and failure to meet emission standards required for modern diesel engines.

Common Symptoms

• Check Engine Light (CEL) or Malfunction Indicator Lamp (MIL) illuminated on the instrument cluster
• Engine derate mode activated, limiting maximum RPM to 1500-1800 and reducing hydraulic performance
• Rough idle or hesitation during acceleration, especially under load during digging or lifting operations
• Excessive black smoke from the exhaust due to improper fuel-air mixture calculations
• Reduced power output making the excavator unable to perform heavy digging or lifting tasks efficiently

Potential Causes

The most common technical causes for Code 1713 on used XCMG excavators with CM2150 engines include:

• Open circuit in the IMP sensor wiring harness, often caused by wire chafing against the engine block near the intake manifold mounting area
• Damaged or corroded sensor connector pins, particularly common in machines operating in wet or corrosive environments
• Failed Intake Manifold Pressure sensor with internal short-to-voltage condition
• Faulty ECM with internal circuit damage (rare, but possible in high-hour machines)
• Damaged sensor supply voltage circuit from the ECM, typically the 5-volt reference wire
• Aftermarket wiring repairs done incorrectly on used equipment, creating resistance or voltage drop issues

How to Troubleshoot and Fix Code 1713

Step 1: Visual Inspection Begin by thoroughly inspecting the IMP sensor located on the intake manifold. Check the sensor connector for corrosion, bent pins, moisture intrusion, or physical damage. On used excavators, examine the entire wiring harness from the sensor to the ECM for signs of rubbing, melted insulation, or previous repair attempts. Pay special attention to areas where the harness contacts the engine block or passes through metal brackets.

Step 2: Electrical Testing Using a digital multimeter (DMM), disconnect the IMP sensor connector and measure the supply voltage from the ECM. You should read approximately 5.0 volts DC on the reference wire (consult the CM2150 wiring diagram for specific pin identification). Next, measure the signal wire voltage with the key on and engine off—it should read between 0.5-1.0 volts. If voltage exceeds 4.5 volts with the sensor disconnected, the issue is likely in the wiring harness or ECM.

Step 3: Sensor and Circuit Verification Test the IMP sensor resistance according to Cummins specifications (typically 1000-3000 ohms depending on temperature). If readings are out of range or show infinite resistance, replace the sensor. For used machinery, perform a wiggle test on all connectors and harnesses while monitoring voltage with your multimeter—intermittent spikes indicate damaged wiring. Use Cummins Insite diagnostic software to monitor live sensor data and verify the repair by clearing codes and performing a road test under load.

Critical for Used Equipment: Before replacing the sensor, always check for harness wear points common to XCMG excavators, particularly where cables route near the turbocharger or exhaust manifold. Corrosion on ground connections can also cause false high-voltage readings.

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Disclaimer: This guide provides general troubleshooting information. Always consult the official XCMG service manual and Cummins CM2150 diagnostic procedures. If you're unfamiliar with electrical diagnostics or high-pressure fuel systems, seek assistance from a certified heavy equipment technician.