I was going about 40 mph the other day and my speedometer just droppped and the check engine light came on. The speedometer works every once in a while but it most of the time either doesn't work or jumps all over the place. Is there anything I can do to fix it or do I need to take it up to Honda to get it fixed? It is a 92 Prelude S

 

First step would be to find out what the code is from the check engine light. The problem is either with the ICM in the distributor or the speed sensor on the transmission.

 

That's right, 1st thing is to get the code (free at Autozone) don't forget to erase the code after. Most likely speed sensor is acting up or just check it first if it's loose connector.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LudaChris &raquo;</TD></TR><TR><TD CLASS="quote"> 1st thing is to get the code (free at Autozone) </TD></TR></TABLE>

not obd1, just jump the service connector and count the flashes from check engine light.

every long flash means count by 10's, short flash means count by one's. So, two long flashes followed by two short flashes means code 22. It will repeat these codes until the jumper is removed

then look up the code #
http://www.hondacivicforum.com/m_45386/tm.htm

 

another code checking site


http://www.hondaprelude.to/art....html

 

Yea a friend of mine showed me how to do that on my old Prelude that I had. Can I use any type of wire or does it need to be something specific?

 

whatever it takes to make an electrical connection. So pretty much any uninsulated metal wire

 

Ok cool thanks for the help

 

$20 says its the vehicle speed sensor, on top of the tranny. does your odometer and tripometer not work either??

a faulty VSS is CEL code 17, btw.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vinuneuro &raquo;</TD></TR><TR><TD CLASS="quote">First step would be to find out what the code is from the check engine light. The problem is either with the ICM in the distributor or the speed sensor on the transmission.</TD></TR></TABLE>

I thought the blue wire off the ICM was only a tach reference and the speed was only determined through the VSS. I could be wrong though its been a few months since i was looking at that stuff.

 

that is speed sensor for sure. it is on top of the trany, make sure not to replace the reverse sensor, they are 2 diffrent once. good luck

 

Does anyone have a diagram or walkthrough on where the VSS is and how to replace it?

 

Ok I went up to Honda today and they said the VSS is gonna cost me $126
But I went on ebay and saw a bunch of them for old Accords and other Hondas for much much cheaper. Will one of the ones from old Accords fit my car? My motor is the F22b single cam 5 spd. Thanks!

 

yes the f22, f23, h22, h23 are all the same

 

Cool thanks