I have a 94 Civic Si and the stock gauge cluster is acting up on me when i am driving.When the car is moving the needle on MPH will constantly jump up and down from about 40 to 120 mph.Once i come to a stop it also stops and then once i am driving it happens again. Anyone know whats the prblem or can give me an idea where to start with this??

 

Check the Vehicle Speed Sensor connector for corrosion, loose connection or cut/broken wire.

 

bad speedo?happened to me.buddy sold me one for 40 bucks,swapped right out.

 

does it do it constantly or every now and again? I used to hit my cluster hard and it would work for 5 secs then go back to acting up again.

 

I have this problem too but my odometer seems right on. I think my speedo is bad ill have to swap it, I have another but the mileage is twice as much.

 

it is happening constantly and ill give the vss a check tomorrow morning

 

it happens to you and about half of everyone else I just got a different one, but smacking the top of my dash worked for a couple weeks

 

i pulled my vss out and checked it.seemed fine and i clipped it back in.My speedo worked normal for awhile until i got on it.when i give it full throttle it went crazy again and now i am throwing a cel 17 for vss.Is a new vss needed for sure??

 

bad speedo it happened to me.....

 

Replace the VSS. vehicle speed sensor. Before you re-install the new one make sure their is no corrosion in the connector on the harness

 

I swapped out my speedo and it took care of my messed up speedo needle.