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  #15  
Old 26-08-2012
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Originally Posted by murray View Post
i know what you are on about
its not a isolated case
i was told by another oily that it was cuased by a cracked solder joint in the control module on top of injection pump
and yes i own one
Problem is its $$$$$$$ to do anything to it to fix it.
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  #16  
Old 26-08-2012
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Thanks for all the help so far. The injector pump has not been worked on as far as I know. The tops have been replaced for about 35000km ago by the previous owner. All tops new. The engine now has 235000km. I have noticed that the idle often hang around 1100rpm before it after a while (could be several minutes) before settlling on the normal 750-800. This happens quite often, almost always. It does not have any misfires. It runs smooth as silk and is easy to start. But sometimes when I stop it using the key it runs some extra rounds before it stops (2-5sec). I have cleaned the sensor contacts with connection cleaner. At least the sensors I have located so far

In my diesel manual there is a few sensors that controls the injector pump.

TPS--------------------->|
Engine temp sensor------>| ECM |----->Injection pump---->Injectors
injector spring sensor---->|
CPS--------------------->|
If you are lucky, moving the injector body about 1/10mm may improve things.

Good luck
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  #17  
Old 26-08-2012
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1/10mm is not much. I will try that
  #18  
Old 26-08-2012
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1/10mm is not much. I will try that
Make sure you can return it to the original place if it makes it worse.
You can keep on making small moves if it improves.
I have done this.
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  #19  
Old 26-08-2012
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mark first seems like a good idea
  #20  
Old 27-08-2012
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Problem is its $$$$$$$ to do anything to it to fix it.
Is this something I can solder my self?
  #21  
Old 27-08-2012
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Is this something I can solder my self?
When you take the top off the IP you will see. I dont think you will need to solder.
At this point in time I think your problem is adjustment. When they did the seal it was probably put back just on the limit & now it has settled you have a problem.
You undo 4 bolts for the lid & then more for the body, the electronics are in the body & there is a pin sticking out the bottom in to the pump body that swings in an arc to move the rack in the pump.
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