Graham Rudd Posted August 15, 2002 Share Posted August 15, 2002 After my overboosting problems last week which turned out to be a ripped hose, that I've since had to repair twice. (There HAS to be some reason that hose keeps ripping in half!). I still don't think my car is behaving properly. It still suffers from not spinning up the second turbo if I drop a gear into the rev range where it should come on-line. (e.g. dropping a gear from 5th where rpm is less than 4k, down to 4th where it is greater than 4k) To get the turbo to kick in I have to lift off until the rpms drop below 4k, then floor it. The second turbo also seems a little hesitant. It seems to stutter a little, trying to decide whether to actually kick in properly or not. It usually gets over it and comes on strong, but sometimes it just doesn't bother. Is there anything I can check myself for obvious faults? Also has anyone got a spare J-Spec manual ECU for sale (or temporary loan)? I would like to make sure the blitz ECU isn't just rubbish. Many thanks, Graham Quote Link to comment Share on other sites More sharing options...
Alex Posted August 15, 2002 Share Posted August 15, 2002 Sounds like you VSV is on its way out... I would take it someone you trust to diagnose the problem. Don't know if Leon or CW is closest but if there is no one nearby with enough experience I'd see one of them. Boost probs are always diificult to diagnose via a text description. Quote Link to comment Share on other sites More sharing options...
Graham Rudd Posted August 15, 2002 Author Share Posted August 15, 2002 Whereabouts is the VSV? Is it something I could get at? Quote Link to comment Share on other sites More sharing options...
Alex Posted August 15, 2002 Share Posted August 15, 2002 Have a look at IanC's web site He's got lots of piccy's and explanations Ian's Site Quote Link to comment Share on other sites More sharing options...
Guest Nick Harris Posted August 15, 2002 Share Posted August 15, 2002 It is the VSV that has the Reed valve incorporated in it. Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted August 15, 2002 Share Posted August 15, 2002 Take it to TDi Quote Link to comment Share on other sites More sharing options...
Graham Rudd Posted August 15, 2002 Author Share Posted August 15, 2002 Thanks Alex, those pictures have at least pointed me in the right direction to start looking for possible problems with hoses etc. Terry, it is booked into TDi, doesn't get looked at until October though. Was just checking if there was maybe something I could diagnose myself in the meantime. Cheers Graham Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted August 15, 2002 Share Posted August 15, 2002 I always suspected it was VSV realated. They can go bad. You really need an expert like Leon, CW, or TDi to check their operation. You may find something on http://www.mkiv.com as to a way of testing them yourself. Don't just let someone change them without testing them first. Quote Link to comment Share on other sites More sharing options...
Justin Posted August 16, 2002 Share Posted August 16, 2002 Where is Leon based? Does he have a web page? I know CW is in Shropshire but that is a bit far for me. I may need one of these Supra doctors one day. Cheers:) Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted August 16, 2002 Share Posted August 16, 2002 He is in Watford until next Week when the operation moves to Bletchley near MK. Quote Link to comment Share on other sites More sharing options...
Justin Posted August 16, 2002 Share Posted August 16, 2002 Is that Milton Keynes Terry? Cheers for your reply. Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted August 16, 2002 Share Posted August 16, 2002 Yes Milton Keynes Quote Link to comment Share on other sites More sharing options...
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