112504 – HIHI T-Exhaust A4
Red alarm. Initiated by EMU.
Cause
Corrective action
Individual exhaust gas
temperature of this cylinder is
too high in comparison with
weighted average.
1. Check emission values.
2. Check ignition timing (→ Page 137).
3. Check valve drive (exhaust valves do not close).
112505 – HIHI T-Exhaust A5
Red alarm. Initiated by EMU.
Cause
Corrective action
Individual exhaust gas
temperature of this cylinder is
too high in comparison with
weighted average.
1. Check emission values.
2. Check ignition timing (→ Page 137).
3. Check valve drive (exhaust valves do not close).
112506 – HIHI T-Exhaust A6
Red alarm. Initiated by EMU.
Cause
Corrective action
Individual exhaust gas
temperature of this cylinder is
too high in comparison with
weighted average.
1. Check emission values.
2. Check ignition timing (→ Page 137).
3. Check valve drive (exhaust valves do not close).
112507 – HIHI T-Exhaust A7
Red alarm. Initiated by EMU.
Cause
Corrective action
Individual exhaust gas
temperature of this cylinder is
too high in comparison with
weighted average.
1. Check emission values.
2. Check ignition timing (→ Page 137).
3. Check valve drive (exhaust valves do not close).
112508 – HIHI T-Exhaust A8
Red alarm. Initiated by EMU.
Cause
Corrective action
Individual exhaust gas
temperature of this cylinder is
too high in comparison with
weighted average.
1. Check emission values.
2. Check ignition timing (→ Page 137).
3. Check valve drive (exhaust valves do not close).
56 | Troubleshooting | MS150097/01E 2013-10
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