I have a 96 Civic with a B18C1. I recently changed the alternator and my car is now giving me 3 Codes. Prior to changing the alternator, i did not have these CEL.

It's throwing 2 O2 sensor CEL. I plan on changing the O2 sensor soon but my question is more about CEL 17 VSS speed Sensor.

My dashboard works fine except for the speedometer lol. It doesn't move at all. I changed the fuse which i believe is #25 and still the same thing.

You guys have any ideas how to figure out wether the dashboard is messed up or if the sensor became damaged after i installed the new Alternator.

 

First thing i'd check is to make sure its been plugged up and that its seated properly. Then make sure your pig tails are seated all the way in on the gauge cluster. If you already replaced the fuse this would be my next step. Same with the 02 sensor.

 

I just finished doing that, i think i've found the problem. Fuse 15 keeps blowing when i turn the car to Ignition(II)? It has a 7.5a fuse and i replaced it and tried to turn the car on and the second one blew. The car thing i have reads it should be a 7.5a fuse.

Any ideas why it keeps blowing?

 

Check the O2 sensor heater power wires and VSS power wire for a short. Also read the fuse 15 TSB in my signature.

 

Yeah Ron i checked that out before i posted. I try to figure stuff out on my own with research until i get stomped. Then i come here to be saved by one of you guys. I checked all my wiring and made sure there was no short and i even re-taped some of them that looked shoddy.

The codes are 20, 41. I managed to fix the VSS Sensor problem some how. But I'm trying to find the Culprit for my Electrical Overload some where.

Thanks any how

 

My guess is that Code 20 Electrical Overload is making me throw code 41.

 

All codes and components share a fuse 15 link. A short is almost surely the source of all the problems.

 

I have encountered this problem when the heater circuit wires short together, on the secondary 02 I believe, I can't recall at the moment if it was primary or secondary. Regardless it was when the heater circuit wires made contact..

 

Thanks, it started raining hard here so i will have to check another time. Maybe tomorrow.