SupraJames Posted April 15, 2009 Share Posted April 15, 2009 I seem to be having a prob with my second turbo, was fine till I switched back from TTC to sequential. First turbo comes in fine and pulls good boost, get close to 4000RPM and engine note changes like second turbo is going to cut it but then it does not come in with any power and pulls around 0.4-0.5 bar boost, when I should be hitting 1.1 bar. Checked all hoses and all are ok, checked to see if the actuator is movable and not stuck and all is ok. Remember hearing a similiar prob with second turbo when going back from TTC mode. Also noticed that the small black plastic vented knob has come off the end of the second turbo VSV value, is this a problem..? Hope that post makes sence and hope someone can help. Link to comment Share on other sites More sharing options...
RobSheffield Posted April 15, 2009 Share Posted April 15, 2009 Have you looked at Ian C's thread in the Technical FAQs? Pretty sure it mentions something similar as the symptoms of something. Link to comment Share on other sites More sharing options...
SupraJames Posted April 15, 2009 Author Share Posted April 15, 2009 Thanks Rob Link to comment Share on other sites More sharing options...
RobSheffield Posted April 15, 2009 Share Posted April 15, 2009 Sorry i didnt link it, im in a hotel room on a slow laptop on a slow Wifi connection and im feeling pretty slow myself Link to comment Share on other sites More sharing options...
vvteye Posted April 15, 2009 Share Posted April 15, 2009 I really hope it is just the electronics, as I had a similar problem and it ended up as a cracked second turbo which was not holding pressure. All the best mate (though it did force me to go single;)) Link to comment Share on other sites More sharing options...
SupraJames Posted April 15, 2009 Author Share Posted April 15, 2009 Have read threw and will go check all hoses, but they all looked fine to me. Could be a faulty VSV I guess, but problem only seems to have occured after going back from TTC. Link to comment Share on other sites More sharing options...
SupraJames Posted April 15, 2009 Author Share Posted April 15, 2009 Problems sorted, swapped out the IACV VSV with a spare I had and all good, second turbo comes in hard and pulls 1.0-1.1 Bar now , must have been a faulty VSV. Link to comment Share on other sites More sharing options...
black_widow87 Posted November 1, 2009 Share Posted November 1, 2009 Checked all hoses and all are ok, checked to see if the actuator is movable and not stuck and all is ok. how did u go about checking the actuator mate???? Im also having a problem with my boost and someone suggested mine mite not be opening!! CHEERS! Link to comment Share on other sites More sharing options...
AndyT Posted November 1, 2009 Share Posted November 1, 2009 Excellent info Some stellar reading for you. EBV_VSV Test.pdfEGCV_VSV Test.pdfIACV_tests.pdfWastegateVSVtest.pdf Link to comment Share on other sites More sharing options...
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