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Katherine JohnsonSep 9, 2025
What should I do if the MTU 12 V 4000 L62 Engine shows 'HIHI T-Exhaust Mean'?
- JJacob LongSep 9, 2025
If the MTU Engine shows 'HIHI T-Exhaust Mean', it means the average value of all individual cylinder exhaust temperatures is too high. You should: 1. Check emission values. 2. Check ignition timing. 3. Check valve drive, ensuring exhaust valves close properly.