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Got problems

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Volvo6702019, Dec 23, 2020.

  1. Dec 23, 2020 #1
    Volvo6702019

    Volvo6702019 Bobtail Member

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    Dec 23, 2020
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    Got a N-14 that I put in a 2005 Volvo 670 back in 2015, ran great until one day it started missing and lost power went a few miles and it cleared up fastward month later lt did the same thing,I have put ln new injecters,injecter harness,Ecm,fuel pump,Accelerator pedal sensor,turbo boost sensor,engine position sensor and it still has no power in fact if I unplug the turbo boost sensor, the power is better at throttle but fuel is not there any ideas
     
    Volvo6702019, Dec 23, 2020
    Volvo6702019, Dec 23, 2020
    #1
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  3. Dec 23, 2020 #2
    6cuda6

    6cuda6 Light Load Member

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    Oct 9, 2020
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    I dont know that engine very well but cam you not scan the ECM for faults?
     
    6cuda6, Dec 23, 2020
    6cuda6, Dec 23, 2020
    #2
  4. Dec 23, 2020 #3
    Volvo6702019

    Volvo6702019 Bobtail Member

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    Dec 23, 2020
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    There were no faults found other than power derated
     
    Volvo6702019, Dec 23, 2020
    Volvo6702019, Dec 23, 2020
    #3
  5. Dec 24, 2020 #4
    6cuda6

    6cuda6 Light Load Member

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    I know this is going to sound lame but did you check/test batteries, charging system etc? We get alot of intermittent faults because of this.
     
    6cuda6, Dec 24, 2020
    6cuda6, Dec 24, 2020
    #4
  7. Dec 25, 2020 #5
    Volvo6702019

    Volvo6702019 Bobtail Member

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    Dec 23, 2020
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    Yes, checked all the grounds from the block to the frame, the grounds for the starter, alternator checks fine,new starter, fresh batteries checked all the positive cables and all the fuse plus theECM ground
     
    Volvo6702019, Dec 25, 2020
    Volvo6702019, Dec 25, 2020
    #5
  8. Dec 25, 2020 #6
    6cuda6

    6cuda6 Light Load Member

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    Oct 9, 2020
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    Ecm connector pins? All tight and in good condition? What style of comnector do they use from the truck to the engine harnessing? I know we had huge issues with the emgine harness 90pin OEM connector harness.
     
    6cuda6, Dec 25, 2020
    6cuda6, Dec 25, 2020
    #6
  9. Dec 26, 2020 #7
    Volvo6702019

    Volvo6702019 Bobtail Member

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    Dec 23, 2020
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    All the pins are tight and the connectors are not 90 pin
     
    Volvo6702019, Dec 26, 2020
    Volvo6702019, Dec 26, 2020
    #7
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