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dead/faulty stock boost gauge

For some reason my stock boost gauge has stopped working, it just sits to the far left (as it does when ignition is off) on -7. I have an after market boost gauge which is working fine - shows good vacuum on idle and boost under load. There doesn't appear to be any pipes hanging off that I can see anywhere.

 

Any ideas? Is the stock gauge electrical or mechanical?

 

Cheers

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    The stock guage is electrical, located at the back of the engine bay on the drivers side, its fed by a vacume pipe from the balance bar iirc and its a black box

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    • Author
    If you have an after market one fitted i guess thats why stock not working

     

    No. Both were working fine up until today, the after market one is plumbed in on a t-piece.

     

    I'm guessing that the boost sensor could be at fault, but I have never heard of one them fail before?

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    Check the hose hasn't popped off the sender - drivers side arch behind the suspension turret, black box similar in size to a box of matches...

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    • Author
    Check the hose hasn't popped off the sender - drivers side arch behind the suspension turret, black box similar in size to a box of matches...

     

    Cheers for that Andy, will take a look later on.

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