As most of you know, the speed sensor bolts to the transmission with one bolt that holds down a very weak piece of metal which is the so-called "bracket" to the sensor. Mine broke due to overtightening (my friend broke it on me) on my JDM H22A transmission, so I went to the junkyard to get one out of an Accord. Now, my speedometer is terribly inaccurate. I brought my GPS with me to measure my actual speed, and it told me that I was doing 73 when my speedo read 85!

My question is, can I switch the top half of my Prelude speed sensor with the Accord one? It's a 2-piece sensor and looks identical. Is the measurement taken at the top of the sensor? It's just a gear at the bottom, so I'm guessing that the important stuff is at the top. Anyone tried this before? I can take pics if it helps.

 

bump for answers

 

the gear itself can be switched... should be a pin holding it into the plastic part

 

ok. i will experiment with the broken sensor. not like i'm gonna find a jdm speed sensor at the dealer or the junkyard anytime soon. so once i open the top half, i can then remove the pin to retrieve the gear, correct? is this part necessary?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SolAssassin &raquo;</TD></TR><TR><TD CLASS="quote">ok. i will experiment with the broken sensor. not like i'm gonna find a jdm speed sensor at the dealer or the junkyard anytime soon. so once i open the top half, i can then remove the pin to retrieve the gear, correct? is this part necessary?</TD></TR></TABLE>

yes you should then be able to remove the gear.. Of course the gear is necessary.. thats what tells you how fast your going...

 

i understand that, but my question is whether or not the gear itself is identical on both sensors