This instruction show you guide on how to perform activate test and supply pump difference learning for Kubota V3800 diesel engine.
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(Operating conditions ? Specified Tool conditions)
1.The conditions below are required for 1. Injector non-injection instruction and 4. Supply pump difference learning:
Machine is stopped (KWPSPD = 0)
Neutral switch is ON (XNEU = 1 or ON)
1.Injector non-injection instruction
Stop the injection for each cylinder injector in accordance with the requests from the tool.
Engine vibration and noise are increased when the injection for the corresponding cylinder is stopped. The same results must be attained from all the cylinders.
NOTE:
Do not judge with the corresponding cylinder only: also compare with the symptoms in the other cylinders.
2.EGR actuation test
Operate as shown in the diagram below and in accordance with the requests from the tool.
Low side: When target EGR valve openings of 0% and 15% are given alternately, there must not be disparity in the actual EGR valve opening. High side: When target EGR valve openings of 35% and 60% are given alternately, there must not be disparity in the actual EGR valve opening.
NOTE:
In some cases the actual opening may be different from the target opening. The reason for this is because the learning value is always reflected for 0 lift, after being used for a long time 0 points are shifted. As such, the factory spec. is a relative evaluation and not an absolute evaluation.
3.Air heater relay actuation test
Operate as shown in the diagram below and in accordance with the requests from the tool.
Supply pump difference learning (clear the learning value)
IMPORTANT
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