112419 – LO T-Exhaust B9
Yellow alarm. Initiated by EMU.
Cause
Corrective action
Individual exhaust gas
temperature of this cylinder is too
high in comparison with weighted
average.
1. Check spark plug.
2. Check emission values.
3. Check ignition timing (→ Page 140).
4. Check valve drive.
112420 – LO T-Exhaust B10
Yellow alarm. Initiated by EMU.
Cause
Corrective action
Individual exhaust gas
temperature of this cylinder is too
high in comparison with weighted
average.
1. Check spark plug.
2. Check emission values.
3. Check ignition timing (→ Page 140).
4. Check valve drive.
112501 – HIHI T-Exhaust A1
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 140)
3. Check valve drive (exhaust valves do not close).
112502 – HIHI T-Exhaust A2
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 140).
3. Check valve drive (exhaust valves do not close).
112503 – HIHI T-Exhaust A3
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 140).
3. Check valve drive (exhaust valves do not close).
60 | Troubleshooting | MS150098/02E 2016-11
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