I just replace the o2 sensor cause it was giving me a code 43 which is the heater and was also studdering between 3,000 and 5,000 rpms i put the new one in have had it in one day and it codes again tonight wtf is going on with this??


Thanks

Spencer

 

did u happen to get a bosch universal? if so read this. [URL][https://honda-tech.com/zerothread?id=658673/URL]

 

nope seems to be a honda one!!

 

hmmm... how many miles are on your car? i believe that code 43 comes up when the o2 sensor reads your car running either rich or lean by 20%. could be a fuel system problem- fuel filter,pump,pressure maybe...im not totally sure..

 

makes sure plugged the o2 sensor in all the way, I had that problem on one of my si's because it wanst in all the way

 

its plugged all the way in i have about 70,000 on my swap into my 95 hatch

 

check sig, i'm having the same problem with my civic. both o2 sensors replaced with OEM. still throwing cel code 63...........

btw.... there is no code 43 in my Helms.......

anyway..... I was told that my heater wires are receiving too much voltage due to some "bad wiring"...... CEL ownZ me........ for now

 

Yeah I have a "Voltage higer than expected in 02 sensor 2" but I'm not sure what actual code that is ( I have OBD checking software on my laptop). I know what it's from though, my secondary is tie wrapped in my engine bay. . Also, whoever said that there is no code 43 is right. I think you are mistaking a 43 for a 45, which is system too rich or lean.

EDIT: Im retarted, I think you mean code 65, which is a Secondary Heated 02 sensor heater malfuncion.

 

sorry guys its a code 41

 

41 and 65 are basically identical.... swap the plugs that go into the o2 sensors and i believe not 100% sure, that the code will change from 41 to 65........

bad wiring..... i believe my code is due to my auto to manual swap in the summer, clipped the auto tranny sensors and some wires were left exposed , may have caused a short in the wiring from the ecu to the o2 sensors somewhere........ any wiring gurus know if this is even possible...... i dont know shizzle about wiring...... i'm strictly nuts and bolts for now

 

any other help???

 

up

 

i think i have the same code problem. I'm going to change my 02 sensor and the fuel filter. And see if that fixes it. If the fuel filter is cloged it would make the car run lean, maybe? My car has 110xxx on the orginal filter i think.

 

43 is fuel delivery, you need to check the overall running condition of the engine first. fuel pressure, vlave adjustment, plugs, air filter. i found most of the time the fuel pressure is too high, causing it to run a little rich.