# S13 Speed Sensor Wiring

**URL:** <https://forums.speedlife.net/t/s13-speed-sensor-wiring/129903>\
**Category:** SON240sx Automotive\
**Created:** [November 28, 2009, 12:22pm UTC](https://forums.speedlife.net/t/s13-speed-sensor-wiring/129903 "2009-11-28T12:22:07Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![AhmadG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ahmadg/32/5577_2.png) [@AhmadG](https://forums.speedlife.net/u/AhmadG)\
**Post date:** [November 28, 2009, 12:22pm UTC](https://forums.speedlife.net/t/s13-speed-sensor-wiring/129903/1 "2009-11-28T12:22:07Z")

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Since 240coupe did my 5 spd. swap and engine install, there’s loose wiring, no reverse lights etc… I’m aiming to correct these things one by one. Not to start a flame war with him, but just saying, that is the origin of my issue, moving on\>

The wire from the speed sensor is hanging and swinging side to side next to the passenger frame rail and clutch slave. Basically, whenever I brake, or a certain movement happens, my speedometer comes to life, otherwise it’s dead, or cutting in and out. Definitely seems like a bad connection in that wire, and not the cluster, where most people’s speedo issues are rooted. I also threw a code for the speed sensor circuit, no CEL, just a code stored in the ECU. I check it periodically to make sure I don’t have a code 34 popping up again. 😛

My questions is this: should I cut the 2 wires a few inches from the speed sensor on the transmission, then splice in a new wire all the way to the terminating gray plug?

The reason for this thread’s existence: I hate electrical work. lol Has anyone attempted this? Any advice? If any of you have a fucked speed sensor with a good wire on it, let me know. 😛

Thanks guys. I am already regretting typing up this thread, it seems so pointless, sorry to anybody who gets pissed. _clicks submit_