problem when on the road

2008 MERCEDES BENZ ML320
4WD
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ELCC2002
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we had facing a problem of Mercedes Benz ML320 diesel. previously the car unable to start when 1st came in to our workshop, after check the diesel pump malfunction, we had replace the diesel pump. After replacement, the car able to start but when on the road, unable to go high speed, max speed only reached 30mph, tested diesel pressure more than 200kg. My question is, how would be the problem for this kind of issue?
Feb 19, 2011 at 4:12 AM
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MHPAUTOS
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Check that the injection timing is correct, if the pump been off this may well be the problem.

mark (mhpautos)
Feb 19, 2011 at 4:20 AM
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ELCC2002
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using computer check, injection timing no problem.any other suggestion??
Feb 19, 2011 at 7:43 AM
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MHPAUTOS
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It sounds like a governor problem or lack of fuel supply.

mark (mhpautos)
Feb 19, 2011 at 8:05 AM