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P38A sluggish running

Discussion in 'Range Rover' started by mutsnutz, Jul 9, 2017.

  1. mutsnutz

    mutsnutz Well-Known Member

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    have a x reg p38 diesel it is quite low on power for first 10 min of running once warmed up runs great no faults on nanocom showing
     
  2. Grrrrrr

    Grrrrrr Well-Known Member

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    Temperature sender?
     
  3. mutsnutz

    mutsnutz Well-Known Member

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    is that the green one on the side of the block
     
  4. Grrrrrr

    Grrrrrr Well-Known Member

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    I think so. Yours is slightly different to mine though. I've got the early engine. @wammers will know.
     
  5. wammers

    wammers STILL BREATHING. Donater

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    Yes green one is ECU temp sensor. STC2299
     
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  6. mutsnutz

    mutsnutz Well-Known Member

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    thanks Grrrrrr and wammers i thought it was ordered one up last night cannot do no harm to change it anyway while its stripped down
     
  7. mutsnutz

    mutsnutz Well-Known Member

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    can you get rid of the egr on the x reg 2.5
     
  8. Grrrrrr

    Grrrrrr Well-Known Member

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    Yes, people blank it with a coin or similar but I'd just leave it.
     
  9. wammers

    wammers STILL BREATHING. Donater

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    Just clean the EGR valve out, it will more than likely be gummed up. Then disconnect the vac pipe to it and blank the end of the vac pipe with a suitable screw. No need to blank anything else.
     
  10. wammers

    wammers STILL BREATHING. Donater

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    If the glow lamps come on when the engine is cold, then do not come on when the engine is hot, little chance of the ECU temp sensor being faulty.
     
  11. mutsnutz

    mutsnutz Well-Known Member

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    Glow lamps come on both when hot and cold
     
  12. dubbleRR

    dubbleRR Active Member

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    All p38 diesels are lazy when cold ,but if you push the loud pedal which feels wrong when cold,they go a bit better;)
     
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  13. wammers

    wammers STILL BREATHING. Donater

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    Do you have a hot fix fitted? If so glows will come on hot or cold. If you don't have one fitted ECU temp sensor has failed. If it has failed ECU uses a 50 degree preset.
     
  14. mutsnutz

    mutsnutz Well-Known Member

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    No hot fix installed just replaced temp sensor
     
  15. wammers

    wammers STILL BREATHING. Donater

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    Ok if no hot fix and glows come on hot or cold ECU temp sensor is duff or bad connection. It's the green one by the way.
     
  16. mutsnutz

    mutsnutz Well-Known Member

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    I ordered the green one but it came in black the garage said it would only fit one hole think he said middle one
     
  17. wammers

    wammers STILL BREATHING. Donater

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    Wrong one, must be green the black one fits at the back of the head on 1999 and on cars to switch aircon fans on if there is an overheat. I gave part number of green one in an earlier post. No wonder it's gone tits up. First one behind pump is either brown (single pin no aircon) or blue (twin pin) if aircon is fitted. Next one is green ECU sensor. Next one is black overheat sensor.
     
    Last edited: Aug 13, 2017
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  18. wammers

    wammers STILL BREATHING. Donater

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    By the way garage are tits.
     
  19. Grrrrrr

    Grrrrrr Well-Known Member

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    Depends on the year as I believe Wammers has eloquently explained!
     
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  20. mutsnutz

    mutsnutz Well-Known Member

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    Green one going in when I get time off again