Thread: Slow Speedometer

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  1. #1 Slow Speedometer 
    GTX Level Member DanGTP's Avatar
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    I've noticed over that past few months that my speedo has been slow to react to me accelerating and decelerating. I notice it most when I come to a stop. If I slow from say 30mph to a stop, the speedo is still displaying about 8-10 at the time I come to a stop. This is also reflected on my HUD. I did replace the vehicle speed sensor in an attempt to fix the issue, but I don't think it helped any. Anyone else with something similar?
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    '97 GTP: 9.5:1 Diamonds, P&P Everything, XP, SSIC, GenV, Shiny Headers, 3.29's, HPTuners, E85
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  2. #2 Re: Slow Speedometer 
    DUI BABY Bio248's Avatar
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    i noticed this too, but not as bad as youre saying. the speedo is just off a little, but it shouldnt be noticeably laggy.
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  3. #3 Re: Slow Speedometer 
    GTX Level Member DanGTP's Avatar
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    Mine's laggy. Even on acceleration, I can go up to what I think 40MPH is and the speedo is just passing 35, then comes up to 40 after I've stopped accelerating. I may go try another speed sensor to see if that's it, or if I may have a bad spot in the wiring causing some interference.
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  4. #4 Re: Slow Speedometer 
    The Blue One blueguy's Avatar
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    Aren't they on a small gear? Not sure I've never pulled apart a GP dash. Might try cleaning it out?
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  5. #5 Re: Slow Speedometer 
    GTX Level Member DanGTP's Avatar
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    But the HUD reflects the same numbers... I thought the dash was all digital. Even the speed readout from HPT scanner shows a delay.
    ~
    '97 GTP: 9.5:1 Diamonds, P&P Everything, XP, SSIC, GenV, Shiny Headers, 3.29's, HPTuners, E85
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