Some Dtc Codes

Discussion in 'SN95 4.6L Mustang Tech' started by COramprat, Jun 4, 2014.


  1. COramprat

    COramprat Drone Driver Mod Dude

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    Pulled some codes on the Cobra we got last week. The CEL isn't on BUT I think it may be out or disconnected because is doesn't come on when you turn the key on.

    P0411-
    Secondary Air Injection System Incorrect Flow Detected

    P01443-
    EVAP Control System Purge Control Solenoid or Purge Control Valve Fault

    P0174-
    System Too Lean (Bank 2)

    P1519-
    Intake Manifold Runner Control Fault Stuck Closed

    P0411 and P1519 are new ones on me. Maybe they are all related?
    #1
  2. Rusty67

    Rusty67 Well-Known Member

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    What year is the Cobra ?

    The EVAP and air injection system could be due to a bad vacuum line or a connector that came loose.

    I would imagine the car is running goofy/poorly ?
    #2
  3. COramprat

    COramprat Drone Driver Mod Dude

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    It's a 98. Not running badly at all. That is the weird thing.
    #3
  4. Rusty67

    Rusty67 Well-Known Member

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    Might want to pull the plugs on bank 2 and check the color. Maybe do a compression test while you are there just for piece of mind. I don't think anything is wrong in the cylinders but its a new to you car so while you are there...

    If the color on the plugs in bank 2 looks good and you aren't having drivability issues then I think you are ok to run it for a bit. Do they pull codes when they smog check in your state or just do a sniffer ?

    Shouldn't the IMRC fail open ? Either the return spring is detateched/broken from the linkage or the solenoid that holds the IMRC shut is frozen in the closed position. Not fun to take apart but you can always put a vac hand pump on the actuator and test it manually.

    If the IMRC is not opening I would expect your plug color to be ugly and black showing a rich mixture in general. Might not be noticing it at the tail pipes if it isn't TOO bad and cats are still doing their job.
    #4
  5. COramprat

    COramprat Drone Driver Mod Dude

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    I'll pull the plugs and check. Inspection is an ODB check.

    Where on the manifold is the IMRC? I've looked but maybe I'm seeing it but not realizing.
    #5
  6. Rusty67

    Rusty67 Well-Known Member

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    I can't remember if Stangnet is ok with me posting links to other forums or not so I'll PM this to you.
    #6
  7. COramprat

    COramprat Drone Driver Mod Dude

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    Thank you kind sir.
    #7
  8. COramprat

    COramprat Drone Driver Mod Dude

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    I reset the codes a few weeks back and now the P1519 is gone. Just the other 3 there now.
    #8
  9. Kilgore Trout

    Kilgore Trout Fried or Broiled ?

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    Seafoam might free up the stuck IMRC?
    #9
  10. COramprat

    COramprat Drone Driver Mod Dude

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    It might work but this is a 150K mile engine. I'd be afraid of what it would break loose. I'd hate to rogue sludge up oil ports.
    #10
  11. Rusty67

    Rusty67 Well-Known Member

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    I wouldn't be too scared of some seafoam in the tank. Take the throttle body off and check out how dirty it is on the back side, that will give you a good idea how clean/dirty it is in there.

    Also might want to do a compression and leak down test for kicks. If the cylinders are tight and the back of the TB/inside the upper plenum looks not TOO bad, dump a ton of Seafoam in there.... then again, I'm a seafoam whore.... love the stuff......

    Also, Kilgore, is that your Mustang in your profile pic ? Its cold out there man, your pony is shivering !
    #11
  12. COramprat

    COramprat Drone Driver Mod Dude

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    Ah...I was thinking in the oil. Dink. Gas tank is another story.
    #12

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