turbodan4

how did you guys wire in the resistors needed to keep the heated o2 sensor code from coming up. I get the cel so i obviously wired it wrong. Is there a primary o2 heater ground that comes from the ecu because i couldnt find that pin. let me know what you guys did so i can get rid of the code thanks

chasemyhonda

if you have crome or some form ofr engine management then you can disable the o2 heater error

Mr_CRX

iTrader: (1)

If I remember correctly, you'll get the CEL if you hook up the wideband output directly to the ECU without disabling Closed Loop and the o2 Heater.

Otherwise, just wire up the narrowband output from the PLX box and the ECU will run normally.

If you want to datalog from the ECU with a wideband 0-5v signal, you have to disable those two options in Crome/Uberdata/etc.

sauceja

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr_CRX &raquo;</TD></TR><TR><TD CLASS="quote">If I remember correctly, you'll get the CEL if you hook up the wideband output directly to the ECU without disabling Closed Loop and the o2 Heater.

Otherwise, just wire up the narrowband output from the PLX box and the ECU will run normally.

If you want to datalog from the ECU with a wideband 0-5v signal, you have to disable those two options in Crome/Uberdata/etc.</TD></TR></TABLE>

Could you please elaborate on datalogging with crome on a wideband. I have had problems getting DL to work at all and I have everything I need setup correctly. I have the plx m-300 with gray wire to C18 which is o2 signal and heater disabled through crome and no light. Unless I get really lean I throw a light, still tuning. Would be easier though with DL.

And I have searched near and far for datalogging with not much help. If anyone has any good links I'm down. pgmfi.org search engine isn't the best but I have been through there, here hmt.com moates.net xenocron and still haven't found any good advice to get that **** working.

To OP didn't use resistor although I believe it is a capacitor.

Mr_CRX

iTrader: (1)

Do you have Crome Pro? If you only have the regular version of Crome, there's no datalogging.

Did you disable closed loop?

sauceja

crome pro.

I have O2 enabled and heater disabled.

Do they both need to be enabled or disabled?

I also have ELD and knock disabled otherwise I am trying to run everything else enabled.

turbodan4

im not running an engine managemant right now i just need advise on how you wired the resistor for the o2 heater because i used to plx to replace my stock narrowband

mrbsponge

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbodan4 &raquo;</TD></TR><TR><TD CLASS="quote">im not running an engine managemant right now i just need advise on how you wired the resistor for the o2 heater because i used to plx to replace my stock narrowband</TD></TR></TABLE>

just wire the resitor in line with D14 on the ecu. just take the wire coming from the PLX, solder in the resistor, then add a piece of wire on the end of the resistor.

thats all there is too it, then find D14 on your ECU, cut it and add this newly made wire into it.

this will enable you to use the wideband in place of your stock sensor and feed narrow band from it into the ecu

turbodan4

according to the plx instructions you dont solder the resistor to anything coming off the plx unit you wire it from the primary o2 heater wire off the ecu and the ground for that circuit problem is i dont know where that ground is because according to ecu pinouts that ground does not exist coming off the ecu.

DJ_SaNdOz

I've never installed this, but isn't a ground a ground? Why would the PLX need to use a ground from the ECU specifically?

dunkd

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DJ_SaNdOz &raquo;</TD></TR><TR><TD CLASS="quote">I've never installed this, but isn't a ground a ground? Why would the PLX need to use a ground from the ECU specifically?</TD></TR></TABLE>

accuracy. less interference perhaps?

string

No a ground isn't a ground. If you're interested in electronics, google for "transmission lines".

Danny_EJ

i did a write up on how to do it with the s300, same physical connections just the software calibration menus are different.


check it out
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">Ok first things first. This method keeps the car in OPEN LOOP only that means you do not use your stock o2 sensor. You must unplug it..

1. With the stock o2 sensor unplugged, strip insulation off of terminals A6 and A25. Install a 1k 1/4 watt resistor across Terminals A6 (yellow / black) and A25 (orange/black). Its best to solder this connection. I soldered it and wrapped it in black tape. It puts a 1K resistor across the two wires - the O2 heater, so that the ECU does not generate a code 41 - heated oxygen sensor error. Even if you do get this error the ECU functions normally.

1k resistor installed:



2. Place Ohm meter across leads to test resistance should be within 10% of 1000 ohms or 1k.



3. Next locate D14 WHITE WIRE. This is your o2 sensor input to the ecu. Strip this wire and connect it to the BROWN analog out 2 of your LC1 harness. If you are using an LC-1 with a display, the display uses the Analog out 1 output of your LC1 unit
Which is the Yellow Wire.

Brown LC1 ANALOG OUT 2




D14 Wire :

This should help you locat A25, A6 and D14




The wiring for the LC1 is as follows:Red- 12v
Blue- Heater Ground
White - System Ground
Yellow - Analog out 1
Brown- Analog out 2
Green - Analog ground
Black- Calibration wire

Software:

Go into the S300 manager and go to OPTIONS then SETTINGS.

It should look similar to:



Click on the Wideband Lambda tab and choose :

O2 SENSOR
Go to the Lambda Unit and choose:

AIR FUEL RATIO


It is here where we will define out wideband 0-5v input
Choose Custom**as the quick select drop down menu. You should see

o2 sensor voltage

Enter these settings
1 = 10 a/f
4 = 18 a/f

Ok close S manager and Open LM Programmer.

using the LM programmer, go to analog output 2 tab, and enter the same settings
1volt = 10/a/f
4volt = 18 a/f.

and click program.



AND YOU ARE DONE.

:histerk :tup

For more information about Innovate LC1 download the manual
http://www.innovatemotorsports.com/support...LC-1_Manual.pdf</TD></TR></TABLE>