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  1. #11
    Senior Member
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    Oct 2008
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    scotland, near carlisle-ish
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    1,046

    Re: 1.6 HDI fault P0238 Turbocharger Boost Sensor A Circuit

    Resident idiot! Click here to enlarge

    Peugeot 207 GT 1.6HDi 110 FAP.
    Click here to enlarge
    Click here to see my 207 progress thread.
    Powered By RS Tuning.

  2. #12
    Senior Member
    Join Date
    Feb 2009
    Location
    North Hampshire
    Posts
    597

    Re: 1.6 HDI fault P0238 Turbocharger Boost Sensor A Circuit

    I read the manifold pressure on mine with a Vi Performance monitor/Scangauge in the OBDII port for a while and it went to 2.3 as standard, and after mapping. My mapper didn't touch the boost.

    Do you think it is a symptom resulting from dpf removal? If so, and thinking aloud here, perhaps the flow through the exhaust is high enough or can make the turbo spool quickly enough that the ECU cannot keep up and so the turbo spins faster than the car wants for the vains to allow and boost is over value temporarily and enough to cause limp mode...
    Don't phone and drive... ...you'll spill your drink.

  3. #13
    Member
    Join Date
    Feb 2008
    Location
    Highlands
    Posts
    30

    Re: 1.6 HDI fault P0238 Turbocharger Boost Sensor A Circuit

    im not a hundred percent sure tbh. It happend a few times before i got the dpf removed (went into limp mode) it didnt really happen strait away after the removal, it seems to be alot more frequent now. Im lost, dont know where to go from here?

  4. #14
    Senior Member
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    Dec 2008
    Location
    Dorset
    Posts
    1,208

    Re: 1.6 HDI fault P0238 Turbocharger Boost Sensor A Circuit

    Well, it's not the DPF removal that's at fault anyway.
    As of now, it seems that it's boosting above the MAP sensor capabilities, or the turbo's f*cked.
    You need to travel those 'couple of hundred miles' then...

  5. #15
    Senior Member
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    Oct 2008
    Location
    scotland, near carlisle-ish
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    Re: 1.6 HDI fault P0238 Turbocharger Boost Sensor A Circuit

    maybe the vanes are sticking in the position they would be in when the revs are low and it's keeping the boost abit high...
    Resident idiot! Click here to enlarge

    Peugeot 207 GT 1.6HDi 110 FAP.
    Click here to enlarge
    Click here to see my 207 progress thread.
    Powered By RS Tuning.

  6. #16
    Member
    Join Date
    Feb 2008
    Location
    Highlands
    Posts
    30

    Re: 1.6 HDI fault P0238 Turbocharger Boost Sensor A Circuit

    so can i take the turbo of and split it and try cleaning it that way?

  7. #17
    Senior Member
    Join Date
    Aug 2007
    Location
    west sussex
    Posts
    1,514

    Re: 1.6 HDI fault P0238 Turbocharger Boost Sensor A Circuit

    have you tried running 10k boost to clean it??

    this stuff

    http://www.halfords.com/webapp/wcs/stor ... yId_165750

  8. #18
    Member
    Join Date
    Feb 2008
    Location
    Highlands
    Posts
    30

    Re: 1.6 HDI fault P0238 Turbocharger Boost Sensor A Circuit

    no what do i do with that? I tryed that innotec cleaner but it never waited in the turbo, when i took the plug away to let it run out no liquid came oot atol!! I just need to get this sorted,
    Thanks for everyones help so far

  9. #19
    Senior Member
    Join Date
    Aug 2007
    Location
    west sussex
    Posts
    1,514

    Re: 1.6 HDI fault P0238 Turbocharger Boost Sensor A Circuit

    spray it into the turbo at 2000rpm i use it every year just to freshen the engine up.

    it might work. maybe worth a try before you take the turbo off

  10. #20
    Member
    Join Date
    Feb 2008
    Location
    Highlands
    Posts
    30

    Re: 1.6 HDI fault P0238 Turbocharger Boost Sensor A Circuit

    wayno84 i bought that 10k boost and did it tonight, you know the hose after the MAP sensor was crushed in as i was doing it? is that normal? I put my hands on the hose coming out of the intercooler (the one on the left hand side) and its all oily and wet, could it be split and leaking? Would that be the problem? Was to dark to remove it so il do it tomorrow

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