What is CID 138:
CID 138 refers to a problem with the turbocharger system, specifically related to the boost pressure sensor. The ECM detects an invalid or out-of-range signal from the sensor, which can lead to poor engine performance, reduced acceleration, or inefficient fuel consumption.
Why This Happens:
- Faulty turbocharger boost pressure sensor.
- Shorted or damaged wiring in the sensor circuit.
- Loose or corroded sensor connectors.
- Malfunctioning turbocharger system.
- ECM failure to interpret the sensor’s signal correctly.
How to Fix It:
- Inspect the turbocharger boost pressure sensor for damage or malfunction.
- Test the sensor’s voltage and resistance to ensure it’s within range.
- Check wiring and connectors for visible damage or corrosion.
- Replace the faulty sensor if necessary.
- Inspect the turbocharger system for performance issues affecting boost pressure.
How to Avoid It Before It Happens:
- Regularly inspect the turbocharger boost pressure sensor and wiring.
- Perform routine turbocharger system maintenance.
- Keep connectors clean and corrosion-free.
- Perform diagnostic checks to monitor turbo system health.
- Clue’s equipment maintenance services help monitor turbocharger systems and detect issues early before they affect engine performance.
