RECEPTACLE AS 3T3972 - Caterpillar

The cylinder exhaust temperature is higher than the average temperature for all of the cylinders. The amount of deviation has exceeded the trip point and the delay time has expired.System Response:The following event codes are logged according to the trip points for the temperature:
E831 (1) Cyl #11 Exhaust Port Temp Deviating High (warning)
E831 (3) Cyl #11 Exhaust Port Temp Deviating High (shutdown)If a warning is generated, the alarm output is activated.If a shutdown is generated, the shutdown output is activated and the fuel is shut off.Possible Performance Effect:If a warning is generated, the engine performance is not immediately affected.The engine will be shut down if the trip point for the shutdown is exceeded.Troubleshooting:Test Step 1. Refer to Troubleshooting, "Exhaust Port Temperature (High)".Results:
OK - STOP