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Thread: Help!! Dreaded fuel pressure problem

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    Default Help!! Dreaded fuel pressure problem

    I've got a z28net engine throwing up p0190. Does anyone know what voltage the fuel pressure regulator should read at idle?

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    Regular Member dbgb25's Avatar
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    got same code just on 1.9 cdti

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    Regular Member dbgb25's Avatar
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    rail presure control valve around 3.6 Ohms

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    Thanks, been a bit of a guessing game so far

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    Regular Member viper8's Avatar
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    Piriemr

    did you ever get this problem sorted ?
    have 2 codes which are roughly the same problem as yours

    P0090 fuel pressure regulator control circuit
    P0170 fuel trim malfunction

    car starts crap when cold sometimes stalls
    runs perfect after that
    but judders when i put my foot down

    do you have the same problem ?

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    i had this problem on my 1.9cdti 16v, it also kept cutting out every now and then, as well turnt out to be the fuel pressure regulator plug, which id advise a scrappy as vauxhall will only supply a lume at over £300 :0

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