# bad speed sensor?

**URL:** <https://forums.speedlife.net/t/bad-speed-sensor/125077>\
**Category:** SON240sx Automotive\
**Created:** [June 4, 2009, 5:43pm UTC](https://forums.speedlife.net/t/bad-speed-sensor/125077 "2009-06-04T17:43:13Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![89\_coupe](https://avatars.discourse-cdn.com/v4/letter/8/e0b2c6/32.png) [@89\_coupe](https://forums.speedlife.net/u/89_coupe)\
**Post date:** [June 4, 2009, 5:43pm UTC](https://forums.speedlife.net/t/bad-speed-sensor/125077/1 "2009-06-04T17:43:13Z")

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ok well im working on my car cuz theres a few things that need to get done. my idle is all messed up so im diagnosing that. but thats not the problem. when im sitting there idleing in neutral my hud says im going like 80km/h (it jumps around that area) my trip meter is rolling and sometimes my odometer will roll too. is this a bad speed sensor?

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**Author:** ![Clutchfire](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/clutchfire/32/5654_2.png) [@Clutchfire](https://forums.speedlife.net/u/Clutchfire)\
**Post date:** [June 13, 2009, 5:46am UTC](https://forums.speedlife.net/t/bad-speed-sensor/125077/2 "2009-06-13T05:46:53Z")

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nope cluster. Try replacing that first It’s an easy fix cos you don’t have to refill the tranny.

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**Author:** ![KA24Power](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ka24power/32/5595_2.png) [@KA24Power](https://forums.speedlife.net/u/KA24Power)\
**Post date:** [June 13, 2009, 12:28pm UTC](https://forums.speedlife.net/t/bad-speed-sensor/125077/3 "2009-06-13T12:28:05Z")

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when the speed sensor gets unplugged the cluster stops rolling