just got to swapiin a jdm b18b in a 94 eg copue and first week that i had it my speedometer was working just fine,.., like 3 days ago the needle just started to move by itslef and then stoped.... already check the plug and it seens fine,,, but how can i check the speed sensor or any ideas....

thanxxxx

 

Check the connection on the speed sensor, it may have jiggled free. It could be getting a poor connection

 

alredy did that.. and seems to be ok... anything else that i can check??

 

take if off and put it back on? worth a try

 

speed sensor went bad...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Striker_1818 &raquo;</TD></TR><TR><TD CLASS="quote">speed sensor went bad...</TD></TR></TABLE>

x2. My VSS is bad too and it's doing the same thing. Honda wants $143 for my d-series sensor.

 

It could be the speedometer itself.

 

could be cluster or alternator making it do that. my alt was going and it did the same thing

 

Alternator has nothing to do with the needle going crazy...
If speedometer would be bad...it wouldn't work at all...
Needle moves like crazy = speed sensor is bad...
Needle not moving at all = speedometer is bad or needle is stuck to the gauge
Replace it or buy one on ebay for cheap...or visit the sponsors on this website and get a quote for one...