ok im throwing a:

code 41-Primary oxygen sensor heater

and a

code 43-Fuel supply system

if i turn the car off then on they disapear and it seems that these only come if i dont let the car warm up for a long time before driving.. Like start, wait 30 seconds, drive.. not really warmed up.. ANY IDEAS??

By the way --> B18B with stock P75 LS ECU and GSR trans if u need to know lol

 

anyone have any ideas? i just drove about 2 miles, got some food, and then back and no light so i have no clue whats up.. it only comes one sometimes.. ANY ideas??

 

You need a new 02 sensor. or search, I forget what was mentioned when I searched up my CEL's. But there is plenty of info already out there on this board.

 

any help with the "code 43-Fuel supply system" ???

no CELs so far today..

 

 

 

https://honda-tech.com/zerothread?id=1350177

Here's a post i started yesterday about CEL 41. Unfortunately i cannot help you with the fuel CEL. Good luck man.

 

for the fuel supply code check your fuel pump relay may be going bad and sending a faulty signal to your ecu making it think something is wrong. does your car ever bog out or sputter when driving or on accel? if so then u do have a fuel issue if not then most likely its just a faulty signal from something like a relay

 

where can i find that relay?

 

a new DENSO o2 sensor will take care of both cels

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bootlegtrader &raquo;</TD></TR><TR><TD CLASS="quote">a new DENSO o2 sensor will take care of both cels</TD></TR></TABLE>

what if its only code 43 ?

and no my car doesnt bog or anything like that.. the cell comes on sometimes only going about 60-65 mph on 4th 5th gear..

 

Thats funny, I get the same codes and I have practically the same set-up as you. I have a B20 with a P75 and a GSR Trans.

My code came on after going through a deep puddle. It comes on every couple days. Pretty annoying.

 

that relay is located on driver side under dash next to hood release it has a red connector on it i believe they sell from dealer for about 60 bucks i believe. gl let me know what happens.

 

both codes are caused by an o2 sensor. i know from experience. also dont waste your money on a bosch and then have to buy a denso. get the denso and you are good to go.

 

ok well im having the same problem as far as code 43 sparatically coming on. but, when im driving at like 1/3 throttle in 1st etc it is boggy, but ok when under full throttle. this is with a wideband hooked up and with a normal o2 sensor hooked up so its not the o2 sensor causing it.. wait actually with the wideband it never threw the code but still drove boggy if under light throttle and the car wants to die after driving and putting in neutral????

 

guys im having tthe same problem mine threw that cel when i was driving to work to day sooo please help and figure out please

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92eg6lsvtec &raquo;</TD></TR><TR><TD CLASS="quote">ok well im having the same problem as far as code 43 sparatically coming on. but, when im driving at like 1/3 throttle in 1st etc it is boggy, but ok when under full throttle. this is with a wideband hooked up and with a normal o2 sensor hooked up so its not the o2 sensor causing it.. wait actually with the wideband it never threw the code but still drove boggy if under light throttle and the car wants to die after driving and putting in neutral????</TD></TR></TABLE>
Having the exact same problem.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92eg6lsvtec &raquo;</TD></TR><TR><TD CLASS="quote">ok well im having the same problem as far as code 43 sparatically coming on. but, when im driving at like 1/3 throttle in 1st etc it is boggy, but ok when under full throttle. this is with a wideband hooked up and with a normal o2 sensor hooked up so its not the o2 sensor causing it.. wait actually with the wideband it never threw the code but still drove boggy if under light throttle and the car wants to die after driving and putting in neutral????</TD></TR></TABLE>

mee too but mine is only boggy @ 2500-3000 rpms

 

you will most often get a code 43 when the O2 sensor is sending an irregular signal to the ECU. 9 times out of 10 if yo replace the O2 it will fix it. However if the O2 sensor is replaced and you still get the code, then there is something else that is probably causing the O2 sensor to get fouled too quickly.

 

You do not "need" a new O2 sensor. What you "need" to do is diagnose the problem.

Both of these codes do indeed originate from the primary O2 sensor. Code 41 is for the heater element inside the O2 sensor. You need a multi-meter in order to test it - do you have one?

Code 43 comes about because the ECU has used up all of its long term fuel trim in trying to correct what it thinks to be a messed up a/f ratio as reported back by the O2 sensor.

This info...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xavenged7x &raquo;</TD></TR><TR><TD CLASS="quote">you will most often get a code 43 when the O2 sensor is sending an irregular signal to the ECU. 9 times out of 10 if yo replace the O2 it will fix it. However if the O2 sensor is replaced and you still get the code, then there is something else that is probably causing the O2 sensor to get fouled too quickly.</TD></TR></TABLE>

...is spot on.

If there is actually a problem with the engine/tuning, replacing the O2 will never cure the problem. If there is a problem with the wiring harness, replacing the O2 will never cure the problem either.

Is your wire harness hacked in any way with respect to the O2 wiring? Is this a stock O2 sensor or a replacement that requires you to crimp/solder it into your wiring harness because it didn't come with an OE connector?

 

i know this is an older tread but i now have a code 43, my af gauge (i know theyre pointless) was reading real funny now it dosent even register but the car dogs a little but only till the fmu(also junk, till i get my ecu) kicks in then it takes off. i have a couple of o2 sensors laying around so im gonna try that first. im almost thinking that my o2 is too close to my turbo?