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limp mode- insignia 2.0 CDTI 160BHP

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  • limp mode- insignia 2.0 CDTI 160BHP

    Buzzing noise is coming from the boost control valve/solenoid

  • #2
    Check the vacuum actuator. Connect hand vacuum pump(mityvac) to the actuator.apply vac until actuator reaches stop screw, than realase vac.actuator should return in position in one smooth movement. If it's sticking or slow to return,turbo will overboosting

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    • #3
      Hi Alan,



      Are you still having the same problem? I've got the same problem as you, P0234. On the verge of buying a new turbo, but a bit reluctant to part with my cash until I know its definetly the turbo.

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      • #4
        Sorry, forgot to add that I've had the turbo apart and cleaned it (3 times in fact). Also changed the boost control valve and intercooler outlet pipe as when I cleaned the turbo out the first time round, it blew a 3 inch hole in it. I get the same issue as you, short journeys are absolutely fine. As soon as I do long journeys (usually at higher speeds of around 70, motorways etc.. Which is no good for me as I live just north of Cardiff and work in Bristol) I get turbo flutter and it goes into limp mode. When the engine is turned off and switched back on again, it comes out of limp mode but runs like a bag of s**t until its left to cool down.



        What I don't want to do is take it to Vauxhall and start throwing money at parts that are not even faulty.



        Also, can you change the actuator alone? I thought they didn't sell them on their own? Maybe I have been given duff info.

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        • #5
          Yeah I removed the inner cover too, and cleaned the vanes, control ring and rollers. Testing the actuator is this weekends mission.



          I haven't taken the inlet manifold off yet, but I have heard about the swirl flaps breaking up I could be wrong, but I think the burst intercooler pipe was put down to poor materials? Either that or I've just completely made that up.



          Just checking, you've;

          Replaced the Map Sensor
          Replaced the Boost Control Valve/Solenoid
          Replaced the Inlet Manifold (but then put the old one back on)
          Cleaned the turbo thoroughly

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          • #6
            Any luck with the problem as im having same problem i have replaced boost valve, intercooler, both boost pipes and still makes a dump valve- air release sound when changing gear and putting foot down when traveling further than 10 miles it runs shite and need to cool it down cos it just doesent move hardly,

            Now im going to check the swirl flaps but dont wanna spend a fortune, so have you guys fixed the problem yet?

            Sam

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            • #7
              Originally posted by Seskusam View Post
              Any luck with the problem as im having same problem i have replaced boost valve, intercooler, both boost pipes and still makes a dump valve- air release sound when changing gear and putting foot down when traveling further than 10 miles it runs shite and need to cool it down cos it just doesent move hardly,

              Now im going to check the swirl flaps but dont wanna spend a fortune, so have you guys fixed the problem yet?

              Sam
              I know this was posted some time ago

              I get the same sound at low revs but when blasting the car dont get the problem car went into limp mode couple weeks ago found out the inter pipe was leaking oil dear part only 162

              The vauxhall specialist said that sound might be sticking actuator as its a electronic one giving over boost not got round to taking it back would not putting WD 40 on the bar which moves up and down stop it from sticking. ?

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