CAT 3406E (Prefix 1MM or 2WS) Fault Code: 64 PID: SPN: 105 FMI: 11 Very High Intake Manifold Air Temperature
The ECM detects the following conditions:
•The intake manifold air temperature is greater than 109 °C (228 °F) for more than two seconds. •The engine has been running for at least 30 seconds. •The engine coolant temperature is above 99 °C (210 °F).
Probable Causes:
1) Engine coolant low 2) Debris/low air flow in the charge air cooler 3) Heavy load + high ambient air temperature