KMS MP25 - Page 31

KMS MP25(M)/MA25(M) manual Version 4.2
31
3.2.4.1.8.2 Fault settings
Increase A/F target to:
When engine load and a certain air temperature exceed
both the values set under ‘Air-temp’ and ‘Engine-load’, the
whole ‘lambda target map’ can be increased or decreased
by the value set under ‘increase A/F target with’.
Recommended: -0.2 - -1.0.
When engine load and a certain exhaust gas temperature
exceed both the values set under ‘EGT’ and ‘Engine-load’,
the whole ‘lambda target map’ can be increased by the
value set under ‘increase A/F target with’.
Recommended: -0.5 - -1.5.
Set Max Dec. in Fuel:
Here you can input a maximum negative injection correction when the coolant temperature exceeds
a certain setting. This parameter can be used as protection against engine overheating. If
supplementary enrichment has been set in the coolant temperature compensation table for high
water temperatures in order to protect the engine, this parameters of this function can help
prevent the A/F ratio feedback control from curtailing supplementary enrichment.
Min. Fluctuation at warm-up:
Before the A/F ratio feedback control will activate, the oxygen sensor signal first has to fluctuate
with the amplitude set here. This is a way to recognize if the lambda sensor is connected and
working.
Recommended: 0.2 - 0.5.
Max. time at max. increase:
Here you can input the maximum permissible time for the A/F ratio feedback control to be set to
maximum positive correction. After this time span the lambda-control will shut down.
If set to 0.0 this function will not be active.
Recommendeed time: 3 - 10 sec.
Max. time at max. decrease:
Here you can input the maximum permissible time for the A/F ratio feedback control to be set to
maximum negative correction. After this time span the lambda-control will shut down.
If set to 0.0 this function will not be active.
Recommendeed time: 3 - 10 sec.
If Error on A/F-sensor inc. Fuel by:
Here you can input a compensation value (as a percentage) in case of lambda shut down due to
error. This can be used as a protection for the engine against running a too lean mixture.
Recommended value: 3 - 10%