Rep Power: 0

Ok here's the scenario. Had my alternator tested at Napa about a month or two ago. Found out my alternator was dying, so I got a new one and put it in. No problems since.

Well... today I was driving. Check engine light and battery light both popped up at the same time, and my speedometer stopped working which was odd because, when I suspected my alternator failing the first time all gauges went out while I was driving (fuel, rpm, speedometer, milage, etc...)

I don't think it's my alternator, as I just put in a brand new one. I don't think it's my battery, cause I just put in a new one also. Could it be a fuse?

BTW it's a 2001 Honda Civic EX v-tec.

This is frustrating! And I do not/can not afford to have a mechanic look at it.

 
Rep Power: 0

Sounds like the #4 fuse blown under the dash. It powers the speedometer, charging system monitor and various other things like the EVAP which would cause the check engine light to come on.

 
Rep Power: 265

What is the code it's giving?

And try the gauge diagnostic, I forget how to set it off.

Check fuses, and your o2 wires, this system is all relevant (o2 heaters, eld, vss)

 
Rep Power: 0

i had the same thang happen to me and i also thoght that it was my alternator but it was an o2 sensor that grounded out and then blew the alternator fuse so after a new fuse and o2 sensor it worked just fine and still is