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Thread: P0190 Rail Pressure Range / Performance.

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    Default P0190 Rail Pressure Range / Performance.

    Mornings,

    Has any ever seen this code "P0190 rail pressure range / performance".

    Had the car on tech 2 the other day as Engine Mgmt light had come on (spanner). Though it ran fine and cleared after start. On a few occasions it had gone in to limp mode the only code was this but restarting resolved. Vx suggested it may be the fuel pressure regulator at fault....

    Questions are :

    Anyone ever seen the above code.

    Anyone ever replaced the fuel pressure regulator.

    How expensive are they?

    Rgs

    Bobby

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    Regular Member Gsi3.2's Avatar
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    which engine matey?..

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    Default Doh!.

    1.9 Cdti - 150 model.

    What a muppet!

    Rgs

    Bobby

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    Quote Originally Posted by bobby_rstevens View Post
    Mornings,

    Has any ever seen this code "P0190 rail pressure range / performance".

    Vx suggested it may be the fuel pressure regulator at fault....
    Isn't there a Fuel rail pressure Sensor on the Jtd lump (Or have i dream't it) & if that was failing it would give Range/Trim errors Etc

    Dean
    Last edited by DeanF; 1st April 2008 at 15:36.

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    That sounds just the ticket - where do I locate one of these and anyone know more about what it does?

    Could using a tuning box cause issues? Not that I have but it is possible one could have been used before I bought the car..... just a thought.

    The Vauxhall Technicians said they where unsure and had not seen the code come up before......?

    Your help is apprecaited.

    Rgs

    Bobby

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    Regular Member Gsi3.2's Avatar
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    the pressure sensor is on the end of the common rail.... if it's giving an error, change it..

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    Thanks Dude....

    You make it sound sooooooooo easy.

    I will take a look under the hood later today and see if I can spot it.

    I don't suppose anyone knows a part no. or a good place to purchase or will it be a stealer only part?

    Apprecaited.

    Rgs

    Bobby

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    Is the sensor the module bolted to the end of the rail then or the yellow/black plug?

    I hope this helps?


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    It's the one bolted to the end of the rail.I'm not sure if the system needs to be depressurised in order to remove it safely?

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    MMmmmm as it's a pressure sensor I guess so. I presume they have a pressure release valve like on petrol injected engines.

    Like a tyre valve you release until no diesel comes out. Replace the pressure sensor then how do you reinstate the pressure in the rail? hold the valve in (release valve) until fuel comes out?

    Anyone aware of a part no. or cost?

    Thanks again for your assistance, really apprecaited.

    Rgs

    Bobby

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