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  1. #1

    Ficht - Low voltage at the injectors while cranking - anything else to look at?

    EMM is verified good through DFI. Capacitor also test out good.

    I'm getting about 12-14v at cranking on the r/w wires. There's very little in the service manual about this other than if it's low to look at the stator.

    Has anyone experienced any other faults that would cause low voltage at the injectors? I have a spare stator ready to go in but I'm really not feeling like swapping it out if I don't have to.


  2. #2
    So i finally gave up and swapped the stator. I just got the stator cover buttoned up and did did a quick crank....I'm not getting 18-19 volts on the red/white, but that's with a potentially slightly low automotive battery that was connected with jumpers. I'm pretty sure when I drop one of my fully charged AGMs in there it will be fully functional.

    Hopefully I'll get it buttoned up tomorrow and can test it out.

    I did find that the lower cooling hose on the stator cover was pinched and probably hadn't been flowing properly. That will be fixed.

    I also decided to pull the fuel sender and check on the return restrictor....it was there and fine, but fell out pretty easily when I pulled the assembly out of the tank. Good thing I checked I guess...I doubt it would have held on much longer. I'll be doing the cotter pin fix while I'm in there.

  3. #3
    casey67's Avatar
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    ... Starting to look like YOU and K447 are the Ficht experts

  4. #4
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by casey67 View Post
    ... Starting to look like YOU and K447 are the Ficht experts
    Company is always welcome

    There are others with solid Ficht skills and knowledge. The more the merrier.

  5. #5
    Well, sad to say the stator swap did not solve my problem. I was initially measuring white/red voltage without the injectors hooked up. With the injectors back in, I'm back to ~14v at cranking.

    I have a strange voltage drop somewhere too. I can measure 12+ volts while cranking on one side of the starter relay and 8v on the other side. I'm also seeing less than 9v on the red/purple wires while cranking, yet the voltage at the battery stays above 12.

  6. #6

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    run a temporary red/purple wire to see if it's broke somewhere

  7. #7
    Quote Originally Posted by 785 lugs View Post
    run a temporary red/purple wire to see if it's broke somewhere

    Well, this has me stumped. I dropped a fresh AGM in. About 12v at the battery at cranking but 8-9v on the red/purple wires and 12v at the white/red.

    Tried a jumper like lugs suggested.....same thing.

    I even tried adding a second large auto battery jumped in and still getting the same result.

    I'm baffled.

    Only think I can think is maybe the starter is screwed and pulling too much while cranking?

  8. #8
    casey67's Avatar
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    I'm not familiar with the wiring layout in a Genesis.
    Does it have a small red wire on the solenoid?
    Try jumping the solenoid with a screw driver to see if you get more than 8v.
    Definetly check the ground cable-make sure the insulation isn't rubbed through-alawing corrosion.

  9. #9
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by bgaidan View Post
    ... I have a strange voltage drop somewhere too. I can measure 12+ volts while cranking on one side of the starter relay and 8v on the other side.

    I'm also seeing less than 9v on the red/purple wires while cranking, yet the voltage at the battery stays above 12.
    The start solenoid may be bad.

    Find out where the voltage drop is occurring and fix it.

    Remove and clean both ends of both battery cables, and the engine ground bolt area.

    Also clean the heavy red starter cable end at the solenoid.

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