so im making a custom gauge cluster with a 5th gen tach but this thing is bothering me.. the grey-clear plastic thing with a chip and blue plug.. its hooked to my speedo but what does it do??? what is it??

 

I have yet to take the one apart on my new car... although I will soon... (burnt out bulb). Electrical speedometer sensor perhaps? I'll repost later if my cluster has the same sort of thing.

 

its really got me befuddled

 

i have no clue what it is either, but i ran the cluster without it before and it didnt do anything different...

 

so we know it...
A. takes up space
B. is wired up like a honda-afterthough
C. does something with the speedo
D. apparently does nothing

hmm..... anyone else have any info??

 

its the cruise control speed sensor, it sends MPH info back to the cruise control computer

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JonGP4 &raquo;</TD></TR><TR><TD CLASS="quote">its the cruise control speed sensor, it sends MPH info back to the cruise control computer</TD></TR></TABLE>

i had that on my stock crx si, and it doesnt have cruise control...

 

Maybe it sends info to the ecu to know when to cut off fuel. The stock ECU has a "speed limit" so could that be it?

 

it is the VSS, i unlpugged mine and threw the VSS CEL when decelerating in gear.

I only had that w/ DPFI, w/ MPFI I threw no codes. KEEP IT, it may do something even if you get no CEL.

-Dustin

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JonGP4 &raquo;</TD></TR><TR><TD CLASS="quote">its the cruise control speed sensor, it sends MPH info back to the cruise control computer</TD></TR></TABLE>

if this is so.. would there be any way to use that signal to power a 5th gen speedo???

&lt;has to much free time to imagine and attempt the impossible

 

It is the speed sensor amplifier on a crx cluster. on a sedan cluster it is for the cruis control indicator.

-james

 

Great Scott! It's the flux capacitor!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MonkeyMagic &raquo;</TD></TR><TR><TD CLASS="quote">

if this is so.. would there be any way to use that signal to power a 5th gen speedo???

&lt;has to much free time to imagine and attempt the impossible</TD></TR></TABLE>

i have no idea, try it and find out

 

VSS, its a vehicle speed sensor, its obviously from a 90-91 because the earlier ones don't have it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PlastikOwl &raquo;</TD></TR><TR><TD CLASS="quote">Great Scott! It's the flux capacitor!</TD></TR></TABLE>

LMAO!!!!!

 

it only worked on the ex 4 doors and a few lx that had cruise and they put it on about every cluster they had......

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by guywitarex &raquo;</TD></TR><TR><TD CLASS="quote">it only worked on the ex 4 doors and a few lx that had cruise and they put it on about every cluster they had......</TD></TR></TABLE>

yes but only 90-91, earlier ones never had it.

 

I've taken four 4th gen guage clusters apart.
an EF8
89 CRX DX
90 Civic CX
91 Civic CX
..and none of them had that. I have no clue what it is. But just to let you know, in that picture, the VSS is located on the left, right behind all that plastic behind the cable output there.

 

I found it on 91 DX (manual and auto) and 91 Si clusters.

-Dustin

 

back from the dead but how can that be the vehicle speed sensor.
The vss is on the tranny no?

 

w/ mechanical speedo cable, the VSS gets mounted on the speedo.

 

Are you talking about the gray bit? Its not the VSS. Theres a beeper inside of it I know that. I took it off my JDM ZC cluster and I was thinking it was for the JDM speed chime that goes on at 120 kph.... *shrugs* My USDM cluster didn't have it thats why I thought that.