New Holland 3994 – ENGINE: Diesel Oxidation Catalyst IN Temperature Exceeds 800 °C

The temperature of the Diesel Oxidation Catalyst (DOC) IN has exceeded 800 °C, which may indicate an overheat condition or abnormal operation of the exhaust system.

1. 1

   The temperature sensor associated with the Diesel Oxidation Catalyst (DOC) IN

2. 2

   The exhaust system for blockages or restrictions

3. 3

   The engine operating conditions that may cause excessive heat in the exhaust

1. 1

   Verify the accuracy of the temperature reading

   Check the temperature sensor and its wiring for faults or damage.

2. 2

   Inspect the exhaust system

   Look for blockages, damage, or restrictions that could cause excessive heat buildup.

3. 3

   Review engine performance and operating conditions

   Ensure the engine is running properly and not operating under conditions that could lead to overheating.