What is the meaning of HI T-Exhaust A9 error on MTU 16V4000L32FB?
- MMorgan MullinsSep 7, 2025
A HI T-Exhaust A9 error on your MTU Engine indicates that the exhaust temperature of cylinder A9 is too high compared to the average. You should check emission values, ignition timing, and the valve drive, ensuring the exhaust valves are closing correctly.