DieselDialogue

Operator inducement below normal

Started by Cat tech44 replies

  1. Cat techJunior Member#21

    Thank you I appreciate it I’ll try to run it tomorrow and see if I can get it erase.

  3. Cat techJunior Member#23

    pittsburgh cat man said: Did you do a dosing test?? Click to expand... I tried to run a dosing test however it will not let me due to the code active and I try to erase the code to perform the dosing test but the code come right back before I even get to the dosing test

  4. mekanikSenior Member#24

    The stuff I work on, none of it Cat equipment the operator inducement code is for information only and you will need to force a regen before you can clear it. The 3316-6 code Catalyst Dosing Unit : Current Above Normal make me suspect there is a problem with the dosing unit or a wire to it is shorted to ground.

  5. pittsburgh cat manSuper User#25

    I'm thinking there is a open circuit. get your spoons out and schematic and start checking wires. It you can't find anything there is always their favorite saying "Though highly unlikely the ecm may have failed"

  6. NigeLegend#26

    pittsburgh cat man said: get your spoons out and schematic and start checking wires. Click to expand... Do you have a schematic.?

  7. Cat techJunior Member#27

    Does anyone have the lay out for the relays to the def system?

  8. NigeLegend#28

    The schematic will have that information. Still waiting for you to answer the question whether you have one or not.

  9. Cat techJunior Member#29

    Do you happen to know what the pressure to the DEF pump should be At operating mine sits at 80.

  11. Cat techJunior Member#31

    I think I might have a bad def injector

  12. pittsburgh cat manSuper User#32

    Have you had the injector out? it isn't plugged with crystalized def is it?

  13. Cat techJunior Member#33

    pittsburgh cat man said: Have you had the injector out? it isn't plugged with crystalized def is it? Click to expand... I have not pulled it out Are those possible to visually inspect and clean out? I tested the ohm readying on it and it read a little more then it should have I believe it needed to be between 6-8 ohms

  14. pittsburgh cat manSuper User#34

    Yes you can see it My trucks will start throwing codes and it looks like this a little water in a spray bottle cleans it out pretty easy

  15. Cat techJunior Member#35

    pittsburgh cat man said: Yes you can see it My trucks will start throwing codes and it looks like this a little water in a spray bottle cleans it out pretty easy Click to expand... I cleaned out the injector already checked my harness as well But it won’t left me run any other test due to #1 DEF Dosing current below normal

  17. Cat techJunior Member#37

    pittsburgh cat man said: Thought, unplug injector and see what et says Click to expand... I did unplug it and it stayed the same.

  18. pittsburgh cat manSuper User#38

    I would check the pins and sockets in the plugs to make sure they are all the way in and not corroded check at controller

  19. Cat techJunior Member#39

    pittsburgh cat man said: I would check the pins and sockets in the plugs to make sure they are all the way in and not corroded check at controller Click to expand... I did check pins everything was good How can I verify the injector is bad?

  20. mekanikSenior Member#40

    the 3361-6 code was for Dosing unit current above normal. 3361-5 is for current below normal. Something has changed. With an ohm meter can you test each of the wires that go to the DEF injector from the injector to the ECU that controls the injector? Measure the resistance of the injector at the injector and at the ECU. Are they very close to the same. I'm going to hazard a guess that the injector resistance should be between 10 and 50 ohms

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