Speedometer question ? jumps from 0 to 45mph - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

S14Driftr91 · 09-17-2009, 09:00 PM

In my s14 cluster, my tachometer was broken so recently i got a new tach and swapped it into the original cluster a few days ago. today when i was driving i noticed my speedometer not working. if i came to a stop the needle would go to 0, like it should but when i would start off it would suddenly jump to 45mph and remain there while i was easily doing 15mph or whatever.... has this happen to anyone before ? and does anyone how to fix this? maybe a bad wire or speed sensor possibly ?

thanks for the help guys !

Smurf_240SX · 09-17-2009, 10:59 PM

Its possible that's its a faulty speed sensor.

slider2828 · 09-18-2009, 10:13 AM

I dunno if SR or KA, but I think that is the yellow with green stripe wire... Check if it is loose at the ECU level. Then check and clean plugs on speed sensor located at the rear of the tranny. Its the roundest looking sensor on the tranny.....

S14Driftr91 · 09-18-2009, 06:58 PM

yup, forgot to mention its a Ka.

09-17-2009, 09:00 PM	#1
S14Driftr91 Zilvia Junkie Join Date: May 2008 Location: Poughkeepsie, NY Posts: 583 Trader Rating: (26) Feedback Score: 26 reviews	Speedometer question ? jumps from 0 to 45mph In my s14 cluster, my tachometer was broken so recently i got a new tach and swapped it into the original cluster a few days ago. today when i was driving i noticed my speedometer not working. if i came to a stop the needle would go to 0, like it should but when i would start off it would suddenly jump to 45mph and remain there while i was easily doing 15mph or whatever.... has this happen to anyone before ? and does anyone how to fix this? maybe a bad wire or speed sensor possibly ? thanks for the help guys ! __________________ www.allthingsproper.com

09-18-2009, 10:13 AM	#3
slider2828 Post Whore! Join Date: Oct 2004 Location: San Francisco, CA Posts: 6,040 Trader Rating: (13) Feedback Score: 13 reviews	I dunno if SR or KA, but I think that is the yellow with green stripe wire... Check if it is loose at the ECU level. Then check and clean plugs on speed sensor located at the rear of the tranny. Its the roundest looking sensor on the tranny..... __________________ Turn and Burn!

09-18-2009, 06:58 PM	#4
S14Driftr91 Zilvia Junkie Join Date: May 2008 Location: Poughkeepsie, NY Posts: 583 Trader Rating: (26) Feedback Score: 26 reviews	yup, forgot to mention its a Ka. __________________ www.allthingsproper.com

09-17-2009, 10:59 PM	#2
Smurf_240SX Zilvia Addict Join Date: Aug 2006 Location: So Cal- I.E Age: 36 Posts: 880 Trader Rating: (9) Feedback Score: 9 reviews	Its possible that's its a faulty speed sensor.