Stratty Posted December 3, 2009 Share Posted December 3, 2009 Hi guys I am hoping you can help me solve a little problem with my speedo. I had an NA-TT conversion done a few weeks ago and the problem has only happened since then. When I put my foot down, the speedo climbs as normal but as soon as the 2nd turbo cuts in, the speedo goes flying around to about 140mph (when I am only doing 50mph). It looks more like a boost gauge rather than a speedo. I hope this makes some sense as it's quite hard to explain without seeing it. Any ideas? Quote Link to comment Share on other sites More sharing options...
Missile Posted December 3, 2009 Share Posted December 3, 2009 Maybe you think your doing 50mph, But really that 2nd turbo is pushing you too 140mph. Pushing that comment to one side, Mine did this when i first fitted the kph / mph and delimmiter converter, Fixed it by re doing the wire joints. When you go NA - TT is there any wiring on the Speedo / Dash side that might no be brillient ? Just an idea? Quote Link to comment Share on other sites More sharing options...
trinitom Posted December 3, 2009 Share Posted December 3, 2009 i had the same problem duo to a cheap ebay km/mls convertor. changed to a good one and problem solved. Quote Link to comment Share on other sites More sharing options...
Stratty Posted December 3, 2009 Author Share Posted December 3, 2009 Hmm... I didnt do the conversion myself so am not too sure. I know the clocks were taken out as a new rev counter was needed so maybe something was disconnected from the speedo in error at the same time? Quote Link to comment Share on other sites More sharing options...
Stratty Posted December 3, 2009 Author Share Posted December 3, 2009 i had the same problem duo to a cheap ebay km/mls convertor. changed to a good one and problem solved. I have had the converter on it since I bought it over 3 years ago and have never had a problem with it. Might be an idea just to change it for a better one like you say and see what happens. Where did you get yours? Quote Link to comment Share on other sites More sharing options...
trinitom Posted December 3, 2009 Share Posted December 3, 2009 Hmm... I didnt do the conversion myself so am not too sure. I know the clocks were taken out as a new rev counter was needed so maybe something was disconnected from the speedo in error at the same time? could be. or a bad earth connection. Quote Link to comment Share on other sites More sharing options...
trinitom Posted December 3, 2009 Share Posted December 3, 2009 I have had the converter on it since I bought it over 3 years ago and have never had a problem with it. Might be an idea just to change it for a better one like you say and see what happens. Where did you get yours? From Thor, very good unit by the way! linky : http://www.thor-racing.co.uk/DSC+TSD_Combined-DSC+TSD.asp Quote Link to comment Share on other sites More sharing options...
Vagnum Posted March 31, 2010 Share Posted March 31, 2010 I have had the converter on it since I bought it over 3 years ago and have never had a problem with it. Might be an idea just to change it for a better one like you say and see what happens. Where did you get yours? did you manage to get to the bottom of this? i've a similar fault, up to about 70 it reads ok anything above that 80-100 reads 140mph Quote Link to comment Share on other sites More sharing options...
Geo Posted March 31, 2010 Share Posted March 31, 2010 See here dude, http://www.mkivsupra.net/vbb/showthread.php?t=208402 Quote Link to comment Share on other sites More sharing options...
Vagnum Posted March 31, 2010 Share Posted March 31, 2010 cheers dude, think i'm going to replace mine never liked the way it was fitted in anyway i think it may of been fitted by japvillage. when i frist got the car the wiring behind the dash was a joke! Quote Link to comment Share on other sites More sharing options...
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