Cat C15 SPN0190-8 Check Engine Code

Discussion in 'Kenworth Forum' started by 98T800NY, Feb 17, 2024.

  1. 98T800NY

    98T800NY Bobtail Member

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    Hi everyone,

    New member here. Excited to be a part of this forum. I'm a driver for a small start-up in Upstate NY. They purchased a 2005 Kenworth T800 on auction. It has a C15 Cat and a 10 speed Eaton Fuller. Not much is known on the history of the truck.

    I'm still learning the different parts of the motor. I've never driven anything with a CAT motor. I have a engine code for SPN0190-8. From what I have found, it relates to the Crankshaft timing sensor and either I have a bad sensor or a wiring issue. I think I found the sensor but would appreciate it if somebody could confirm. I found it below the power steering pump tucked into the lower part of the motor.

    If that is the right sensor, what is the best approach for diagnosing it? I think it's worth noting the truck runs very well even with the code in the system. Thanks everyone for your time!
    Crankshaft Position sensor_ (1).jpg Crankshaft Sensor (2).jpg Crankshaft sensor (3).jpg SPN0190-8 (1).jpg
     

    Attached Files:

    NightWind Thanks this.
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  3. NightWind

    NightWind Road Train Member

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    A VIN number off the engine would be helpful
     
    Oxbow Thanks this.
  4. 98T800NY

    98T800NY Bobtail Member

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    Thanks for the reply Nightwind! Does anything on this tag show the motor VIN? Motor Info 1.jpg Motor Info 2.jpg Motor Info 3.jpg
     
    NightWind Thanks this.
  5. NightWind

    NightWind Road Train Member

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    Look on the block by the turbo and on top of the heads I THINK but am not positive it will be like a number like MXS21432
    However that information you posted will help some of the others on here help you figure it out. For help on here the is no such thing as too much information.
     
    Oxbow Thanks this.
  6. 98T800NY

    98T800NY Bobtail Member

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    Ok when I am out at the truck Monday I will look for something in that area. Thanks!
     
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  7. NightWind

    NightWind Road Train Member

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    Also call your local cat dealer and give them the serial number and the code you're getting. They should tell you what's they think the problem is.
     
    Oxbow Thanks this.
  8. 98T800NY

    98T800NY Bobtail Member

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    Will do! Somebody has clearly been messing with the wiring on this truck, but the wires leading to this sensor (Crank sensor or not) don't appear to be touched. Are you familiar with the C15? There is a wire repair job from the ECU to a connector near the top of the valve cover and I'd like to know what that connector is for. There are two of the connectors. ECU(1).jpg Unknown plug (1).jpg Unknown Plug 2.jpg
     
    Oxbow Thanks this.
  9. AModelCat

    AModelCat Road Train Member

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    S/N is on the tag in the pic. MXS09286 it looks like.
     
  10. bjytech

    bjytech Light Load Member

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    The plugs up by the valve covers run your injectors, jakes, and intake valve actuation systems.
    As for your crank sensor code, that specific one typically indicates a wiring issue, it could be the sensor too but I've seen many times where the wires going down to the sensor get rubbed behind and just below the air compressor.
    By the looks of the engine sensor harness it wouldn't be a bad idea to consider replacing it.
     
  11. 98T800NY

    98T800NY Bobtail Member

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    Thanks bjytech. I'm guessing that engine harness is probably a dealer only or salvage yard part?
     
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