What is MID 42:
MID 42 refers to a problem with the Turbocharger Boost Pressure Sensor Circuit. The ECM detects an invalid signal from the turbocharger boost pressure sensor, which can affect boost pressure regulation, leading to poor engine performance 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 affecting boost pressure.
- ECM failure to interpret sensor data.
How to Fix It:
- Inspect the turbocharger boost pressure sensor for visible damage.
- Test the sensor’s voltage and resistance to verify it is within specification.
- Check wiring and connectors for visible damage or corrosion.
- Replace the faulty sensor if necessary.
- Inspect the turbocharger system for any mechanical issues affecting performance.
How to Avoid It Before It Happens:
- Regularly inspect the turbocharger boost pressure sensor and wiring.
- Perform routine maintenance on the turbocharger system.
- Keep connectors clean and corrosion-free.
- Perform diagnostic checks to monitor turbo system health.
- Clue’s Equipment Maintenance services help monitor turbocharger systems to detect issues early before they affect engine performance.
