I just bought a 96 honda civic 2 door. D16y7. I have both the up and down stream o2 heater circuit codes. Both sencers are new and fuse 15 is ok. Any other ideas. I only have 5 more days to get inspection lol

 

Do both O2 sensor connectors get battery voltage from fuse 15?

 

I believe so. And the dash lights flicker bright and dime really bad to

 

May or may not solve the issue but worth a try:
Disconnect both sensors and clean internal connections with electronic cleaner/lube spray from radio shack (or cheaper options on line)... then reset ECU by disconnecting negative terminal and turning on light/brights/ and step on brake pedal a few times to drain residual. Reconnect battery and with all electronics (radio, lights, A/C, etc.) turned off... start engine and let idle for few minutes. Hopefully codes will disappear and stay gone (not just temporarily).

 

I also now have p1298 im thinking a short.

 

Fuse 15 is blown. Read the Fuse 15 TSB.

 

I know its sounds odd as this is a problem with a lot of hondas. (Short circuit caused by intake manifold bracket) causing fuse 15 to blow. Theres a buliten for it from honda. But my is NOT blown. It seems to be acting just like that issue but i dont see the short and my fuse is not poping.

 

I found the short. But i never blew any fuses . Odd. Now its just o2 bank 1. Witch im assuming is now junk

 

If there was a short, then fuse 15 was blown.

 

There is a short but no fuse in the car is blow including 15. Im not an idiot. Ik it makes no sense.

 

How do you know there's a short if fuse 15 doesn't blow?

How do you know fuse 15 is not blown?

 

Found the issue. Broken wire in blue connection under intake manifold. No more cel so far

 

^Makes more sense than short. Glad to know the problem is fixed.