I have a 99 civic never had a problem with it. been great but I had a problem th eother day that keeps gettin worse the speedometer go's haywire starts on 0 then jumps to 120 back to 60 and just keeps goin doesn't stop then I noticed sense that started all the lights started dimming as if the alternater was die'n the lights are now allways a steady flicker/dimming in headlights cluster lights etc. Anybody have any idea whatsup please help thanks,

 

check your fuses under the dash, the sp alternator or something along those lines fuse.....

 

Thanks, checked them and they are good. Any other suggestions?

 

Could be the alternator itself or the ELD (electrical load detector). There might be a bad connection somewhere along the wiring to the alternator or fuse box. Are you throwing a CEL?

 

Yea I am But I checked the code and it wasnt anything for the alt it was low idle or somthing rather

 

could also try using another VS sensor, its located on your tranny. it could also be the connection for it has gotten corroded. that happened to me

 

I'm having a almost identical problem on a 97 Civic LX. Replaced the VSS, and now wondering about the alternator....

What (and where) is a ELD???

 

Do you have indigo gauges? Check around your cluster

 

yeah sounds like the vss might be messed up

 

Remember to check all major grounds.