Craig Tickle Posted January 9 Report Share Posted January 9 When the car comes to a halt, the tacho will briefly drop to zero and then return to idle speed, is this expected behavior ? The engine doesn't miss or stall so I don't see this as a huge problem, I'm more curious if I've set something up incorrectly. The tacho is a SpeedHut one driven by AUX 17 with an external pull up resistor, The car has rear wheel speed sensed by DI3 and front wheel speed sensed by DI2, the speedo (also a SpeedHut one) appears to report vehicle speed accurately Quote Link to comment Share on other sites More sharing options...
dx4picco Posted January 9 Report Share Posted January 9 what does the aux17 frequency reports in PClink when it does happend? Quote Link to comment Share on other sites More sharing options...
Adamw Posted January 9 Report Share Posted January 9 And what does the RPM in PC Link show, does it perhaps do a short undershoot when returning to idle? Quote Link to comment Share on other sites More sharing options...
Craig Tickle Posted January 11 Author Report Share Posted January 11 Sorry the tacho is on AUX 18 not 17, PC link doesn't appear to show an undershoot on reported rpm. Sorry - I couldn't figure out how to get PC-link to show the the frequency that AUX18 was out putting, status just shows PWM. Quote Link to comment Share on other sites More sharing options...
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