Jeff Grant Posted August 2, 2014 Report Share Posted August 2, 2014 Hi Guys, I have just acquired a v4 Sti RA, it has had a early Possumlink ecu in it for some time and has been tuned well on this. My biggest problem with this is the tachometer. The car has a factory dash, the tachometer works fine and smooth when not on accelerating, once on boost or with any throttle the tacho needle bounces around. I have tried searching and found other people with the same thing, but no solutions mentioned in the forum. Anyone have any ideas what it is, and what could fix this? Thanks Jeff Quote Link to comment Share on other sites More sharing options...
Simon Posted August 3, 2014 Report Share Posted August 3, 2014 Hi Jeff This has been an issue we have seen in the past but have not been able to find a cause for it. From memory it was related to the dash cluster and it seemed to only show on 1 in 50 installs. A fix was never found on the G1 units. The later units added a pulse width adjustment to adjust the width of the pulse which was not able to be done on the G1'. I have not heard of any issues with the G4's to date. Quote Link to comment Share on other sites More sharing options...
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