Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

1996 Volvo D12 wia

Discussion in 'Volvo Forum' started by aron12, Apr 2, 2015.

Page 12 of 33
  1. May 23, 2015 #111
    aron12

    aron12 Light Load Member

    189
    10
    Apr 2, 2015
    Centralia , il
    0
    No codes , only 41/46 information codes , why would pressurizing fuel line mess up my ecm? Should be 36lbs - 51lbs of fuel pressure I believe. Fuel definitely circulating through system back to tanks .
     
    aron12, May 23, 2015
    aron12, May 23, 2015
    #111
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. May 23, 2015 #112
    Pablo-UA

    Pablo-UA Road Train Member

    7,604
    1,640
    Oct 11, 2010
    Borispol, Ukraine
    0
    fuel pump sucks fuel throught ECM backplate
    it is designed for vacuum, even handpump may blow it like a ballon.

    that's why priming pump is under hood, installed to suck fuel throught ECM and force it to fuel pump and cylinder head.

    If u see no bubbles in fuel, it must start.

    Ok, what diagnostic connector do u have?

    I suggst u have to pull ECM data to check injector type.
     
    Pablo-UA, May 23, 2015
    Pablo-UA, May 23, 2015
    #112
  4. May 25, 2015 #113
    aron12

    aron12 Light Load Member

    189
    10
    Apr 2, 2015
    Centralia , il
    0
    i only have the dash button diagnostic codes. still no fire. plenty of pressure at the head . no codes
     
    aron12, May 25, 2015
    aron12, May 25, 2015
    #113
  5. May 25, 2015 #114
    aron12

    aron12 Light Load Member

    189
    10
    Apr 2, 2015
    Centralia , il
    0
    ready to give up !!!!!
     
    aron12, May 25, 2015
    aron12, May 25, 2015
    #114
  7. May 26, 2015 #115
    Pablo-UA

    Pablo-UA Road Train Member

    7,604
    1,640
    Oct 11, 2010
    Borispol, Ukraine
    0
    Now do the last check
    remove valve cover, use o-scope to check pulses when starter cranks engine

    Voltage is about 90V
     
    Pablo-UA, May 26, 2015
    Pablo-UA, May 26, 2015
    #115
  8. May 27, 2015 #116
    aron12

    aron12 Light Load Member

    189
    10
    Apr 2, 2015
    Centralia , il
    0
    i have heard of using a led light to test injector pulse.
     
    aron12, May 27, 2015
    aron12, May 27, 2015
    #116
  9. May 27, 2015 #117
    Pablo-UA

    Pablo-UA Road Train Member

    7,604
    1,640
    Oct 11, 2010
    Borispol, Ukraine
    0
    with 10K resistor

    90v pulse will blow LED easily)

    Anyway I think injector type is wrong....
     
    Pablo-UA, May 27, 2015
    Pablo-UA, May 27, 2015
    #117
  10. May 28, 2015 #118
    aron12

    aron12 Light Load Member

    189
    10
    Apr 2, 2015
    Centralia , il
    0
    i HAVE NOT TAKEN THE VALVE Cover off yet, but everything is green, this thing should have started!!!sensor control flashing green , I did get a code 26 , which is cam sendor, but the truck acts like its getting no furl at all. I know I have good pressure in and out on return , pump is pumping fuel well. took lines off and checked for debris , found all clean. what now?? open the valve cover and start checking there I guess. I believe the fuel ports ect are internal .
     
    aron12, May 28, 2015
    aron12, May 28, 2015
    #118
  11. May 28, 2015 #119
    aron12

    aron12 Light Load Member

    189
    10
    Apr 2, 2015
    Centralia , il
    0
    thinking about what your saying about the injectors,wouldn't I get a 31 through 36 code through the diagnostic button? or at least a 23 for wrong programming on ecm? I would think so.
     
    aron12, May 28, 2015
    aron12, May 28, 2015
    #119
  12. May 28, 2015 #120
    Pablo-UA

    Pablo-UA Road Train Member

    7,604
    1,640
    Oct 11, 2010
    Borispol, Ukraine
    0
    if cam sensor not operating engine starts poorly by cransensor only/

    remove valve cover and inspect cam sensor for magnetic dirt

    chack pole ring.
     
    Pablo-UA, May 28, 2015
    Pablo-UA, May 28, 2015
    #120
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

    • Page 12 of 33