I have a 99 civic but my check engine light is on. It has something to do with my speedometer.

Does anyone know if this will affect smog check?

Thanks.

 

you cannot pass smog with a check engine light on.. at least in california you cant.

 

wont pass here in az so it definitely wont pass in cali...

 

nope and if u take the buld out, the smog machine wil still read it good luck

 

Is your cel for the vss?

 

I'm not sure, I changed the VSS but my speedo still doesn't work.

It could be the wiring.

 

Check whether the VSS gets battery voltage and whether the ground wire has continuity to body ground. If those are fine, check the wire running between the VSS and ECU for an open or short. The VSS connector also seems to be a common problem.

 

yeah theres no way youll be able to pass

 

definitely doublecheck the 3 sockets inside the connector on the VSS wire, as well as all 3 pins on the vss. I've seen them corrode out multiple times.

If the connector on the wire end is corroded, just snag any similar square 3 prong honda connector from the junkyard and solder it on. That's what I did... think mine came off an old Accord. It doesn't have to be a VSS connector, just one the same shape.

 

What code is it throwing?