MOUNT 3982025 - Caterpillar

The cylinder exhaust temperature is less 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:
E842 (1) Cyl #2 Exhaust Port Temp Deviating Low (warning)
E841 (3) Cyl #2 Exhaust Port Temp Deviating Low (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 (Low)".Results:
OK - STOP