Hey everyone.....I have been throwing cell code 41, so I tried to replace my o2 sensor......still throwing the code.....

Anyone have an idea how to get this code from being thrown? Is it something besides my 02 sensor?

Thanks,
Dustin

 

Usually means faulty sensor, but sense you replaced it already.... I would say check your wiring there could be a short in the heater wires for the O2 sensor. I just fixed my code 41 and that was the problem.

 

I see you did a swap into a CX. CX uses 1 wire o2 sensor, SiR II uses 4 wire. Use a 4 wire o2 sensor and your code 41 will disappear.


I had the same problem but with a VX. See thread:

https://honda-tech.com/zerothread?id=295330


Modified by DaX at 3:29 PM 12/29/2003

 

I used the 4 wire......still have the code???

 

When i wired in the new sensor, i made a new harness and wired it into the ecu......maybe i did that wiring wrong......anyone have a diagram just to double check that I did it correct?

 

that is for secondary o2 sens if you done a transplant or your using a usdm ecu or any of the follwing p13.p72, you are going to get this code thy a chipped euc and remove the sec o2 and its cool or get a pr3 or p30 ecu normally cx dont come with a second o2 just wire it in if you know how or hit me back i do those things all the time cool

 

As for the code 41 O2 heater malfunction. You already have the WHT wire going to the D14 pinout(if you had the 1-wire 02 hooked up).
You should have two BLK and one GRN on the O2 sensor.

Match as follows:

BLK -> Yel/Blk to the A25 pinout or to the power junction harness on the driver shock tower harness.
BLK -> Org/Blk to the A6 pinout which is O2 Heater Control
GRN-> Grn/Wht to the D22 pinout which is Sensor Ground.

It does not matter which blk goes to where, just as long as they both go to their direct pinouts.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turboxsi &raquo;</TD></TR><TR><TD CLASS="quote">

As for the code 41 O2 heater malfunction. You already have the WHT wire going to the D14 pinout(if you had the 1-wire 02 hooked up).
You should have two BLK and one GRN on the O2 sensor.

Match as follows:

BLK -&gt; Yel/Blk to the A25 pinout or to the power junction harness on the driver shock tower harness.
BLK -&gt; Org/Blk to the A6 pinout which is O2 Heater Control
GRN-&gt; Grn/Wht to the D22 pinout which is Sensor Ground.

It does not matter which blk goes to where, just as long as they both go to their direct pinouts.

</TD></TR></TABLE>

i recently had a certified Honda Mechanic look into my problem, i am throwing a code #1 in Flash, but its the same problem as you have described. The scanner's are saying that there is something to do with the heater wire being bad, so my friend said that he's going to re-ground a wire or something along those lines. ill tell you results after he helps me out, and tries to fix it. But it might be a couple days, hes helping me rebuild my B16 head for now.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dustinsterk &raquo;</TD></TR><TR><TD CLASS="quote">I used the 4 wire......still have the code???</TD></TR></TABLE>

if you can't get a certified Honda tech. to look at your car just follow the pinouts to the sensor and make sure there are on shorts ........

WHT wire going to the D14 pinout
BLK -&gt; Yel/Blk to the A25 pinout or to the power junction harness on the driver shock tower harness.
BLK -&gt; Org/Blk to the A6 pinout which is O2 Heater Control
GRN-&gt; Grn/Wht to the D22 pinout which is Sensor Ground.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turboxsi &raquo;</TD></TR><TR><TD CLASS="quote">

if you can't get a certified Honda tech. to look at your car just follow the pinouts to the sensor and make sure there are on shorts ........

WHT wire going to the D14 pinout
BLK -&gt; Yel/Blk to the A25 pinout or to the power junction harness on the driver shock tower harness.
BLK -&gt; Org/Blk to the A6 pinout which is O2 Heater Control
GRN-&gt; Grn/Wht to the D22 pinout which is Sensor Ground.

</TD></TR></TABLE>

if there is a short, then how would you go about fixing it?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CleenSi &raquo;</TD></TR><TR><TD CLASS="quote">

if there is a short, then how would you go about fixing it?</TD></TR></TABLE>

A short can result from many things, cut wire, exposed copper wire (from rubbing on somthing), etc.. Any of those will disturb the signal to the ecu, therefore thats why the ecu gives you the code 41(Faulty sensor or wiring short, is what the helms say). So in this case you would look for any of these possibles among the four wires between the o2 sensor and ecu, then fix them by either taping, reconnecting or soldering them.

Its also nice to have the helms guide wiring diagrams ready for DIY.

 

what year motor are you using? obd1 or obd2?

 

thanks turbo guy heh ill look more into it tomarrow

 

WOW!!!!!!!.....thanks everyone!!!!!!....I will check all of this and let you know.

--Dustin

 

turboxsi thanks so much.....you are the man.....fixed all the issues

 

No problem guys

 

Hey, dustinsterk,

what engine harness are you using?
Did you use a 92-95 EX/Si engine harness or did you reuse your CX engine harness?

I ask because all 92 civics are prewire for a 4-wire 02 sensor from teh ecu out to the shock tower plug, but the CX engine harness is not prewired for a 4-wire 02 sensor.

 

I used the CX engine harness.....and just made a harness for the o2 sensor......(a little gangster, but it will do for now)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Katman &raquo;</TD></TR><TR><TD CLASS="quote">
I ask because all 92 civics are prewire for a 4-wire 02 sensor from teh ecu out to the shock tower plug, but the CX engine harness is not prewired for a 4-wire 02 sensor. </TD></TR></TABLE>

That is very wierd b/c my friend just finshed his swap into his '92 CX and he DID have a 4-wire O2 sensor on his CX wiring harness, I put it in my self.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turboxsi &raquo;</TD></TR><TR><TD CLASS="quote">

That is very wierd b/c my friend just finshed his swap into his '92 CX and he DID have a 4-wire O2 sensor on his CX wiring harness, I put it in my self.

</TD></TR></TABLE>

honda works in mysterious ways...