SCsol

iTrader: (1)

Does the Simulated Narrowband O2 output put out the correct voltage to use this function on a honda O2. Im going to be using this on a S2000 O2.

EJ1 wilcox

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SCsol &raquo;</TD></TR><TR><TD CLASS="quote">Does the Simulated Narrowband O2 output put out the correct voltage to use this function on a honda O2. Im going to be using this on a S2000 O2.</TD></TR></TABLE>

It sure does.

Are you planning on putting the wideband o2 in the stock location and feeding the ECU with the narrowband output from the ZT-2? If so, many people do it this way, it works fine.

SCsol

iTrader: (1)

so the voltage output (signal) will work FINE with the stock ECU? its a perfect match?


And What do I do about disabling the O2 heater so I dont get a CEL light


Modified by SCsol at 6:53 PM 5/29/2005

SCsol

iTrader: (1)

ttt

ORcivicsi

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SCsol &raquo;</TD></TR><TR><TD CLASS="quote">
And What do I do about disabling the O2 heater so I dont get a CEL light
</TD></TR></TABLE>

BUMP for an answer

SCsol

iTrader: (1)

someone in FI sould know this question.

ORcivicsi

I just bought a ZT-2. I would also like to know the answer.

SCsol

iTrader: (1)

TTT many people are looking for the answer!!!!!!

ORcivicsi

BUMP

dennis

If you're using it on an s2k, you're going to have to simulate the o2 heater circuit somehow. There has been some talk on there about using a resistor (seach for something like o2 heater circuit simulator - or a variation of), but I haven't tried it because I just disabled o2 heater in my obd1 ecu. I don't think you'd have this option in an s2k though as I don't think you can convert to obd1. Why don't you just add another o2 bung for the wideband?

As far as using the zt-2's narrowband output. It works fine. I'm currently using it in my Accord.

Edit: https://honda-tech.com/zerothread?id=1026855 - that's the post I asked a while back, but I never was able to try any of the suggestions.

boonacka

All you have to do is cut the factory O2 signal wire to the ECU and reconnect to the simulated narrowband signal from the ZT-2. Leave the factory O2 plugged in but tucked somehwere out of the way. That way, the ECU still sees heater circuit resisitance but uses the narrowband signal from the ZT-2.

DohcVtecCrx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boonacka &raquo;</TD></TR><TR><TD CLASS="quote">All you have to do is cut the factory O2 signal wire to the ECU and reconnect to the simulated narrowband signal from the ZT-2. Leave the factory O2 plugged in but tucked somehwere out of the way. That way, the ECU still sees heater circuit resisitance but uses the narrowband signal from the ZT-2.</TD></TR></TABLE>
This is exactly what I do, my previous car I took the stock O2 out and tucked it behind my rear motor mount, this car has 2 holes, but my stock O2 was old and had a bad reading so I cut the signal wire and run my norrow band to it. A/f is perfect now on all open loop driving or idleing, no codes so I know it is working correctly. This is on a plx BTW

dustin

It works fine, I'm running by honda ECU w/ Zeitronix the narrowband input.

Just leave the stock O2 wired up for the heater... zip tie it somewhere.

ORcivicsi

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boonacka
&raquo;</TD></TR><TR><TD CLASS="quote">factory O2 signal wire </TD></TR></TABLE>

Not trying to thread jack but what color is this wire.

SCsol

iTrader: (1)

Is there a resister that will work insteed of having my O2 flopping around?????

DohcVtecCrx

yes there is go to plx website and they have install instructions which shows which resistors you can use. I think it is plxdevices.com

boonacka

but why spend the money and time wiring in a resistor. just neatly zip tie your orig O2 sensor somehwere.. but its up to you

SCsol

iTrader: (1)

Thanks DohcVtecCrx I looked at the PLX site and found alot of good info....

PLXAPP002
M-Series Integration with Hondata ECUs


Summary

This app note outlines the procedures for M-Series linear wideband output signal integration with Hondata ECUs. Do not attempt to perform the installation instructions below if you are not familiar with the automobile's electrical system. Improper connections may cause damage to your automobile.


Procedure

Hardware Setup

1. Locate and disconnect the stock narrowband oxygen sensor. If your Honda/Acura is an OBD II system,
disconnect the primary sensor. The primary sensor is located before the catalytic converter. As a general
rule, cars after 1995 are OBD II.
2. Remove the narrowband sensor and install the wideband sensor in its place.
3. Torque the sensor to 45 N*m or 33 lb-ft
4. Connect a 1K Ohm resistor across the +12V heater and heater ground wires (two black wires on the sensor
side). This can be obtained from your local Radio Shack. 1KOhm with 5% tolerance 1/4 watt power rating will
work fine. This eliminates error code 41(heated oxygen sensor error) and "fools" the ECU to think that a
sensor is present and is properly being heated. The ECU will still function normally even if you get the error
code.
5. Connect the power (red) wire of the M-Series to a 12V power source at a location near the ECU. This power
should only be supplied when the key is turned past a specific position. Make sure that this connection is
capable of supplying at least 3Amps of current.
6. Connect the ground (black) wire of the M-Series to chassis ground near the ECU. By keeping the wires short
and close to the ECU allows the M-Series and the ECU to see the same reference ground. This results in a
more accurate air/fuel ratio voltage interpretation.
7. Connect the linear output signal wire (white) from the M-Series to the O2 signal input wire. This connection
may be done at the narrowband connector and is not extremely crucial that it is near the ECU.
8. Do not use the cigarette lighter power. It is a poor connection and reference ground may be off as much as
0.5V. Only use this power connection if you intend on using the M-Series as a stand alone unit.

http://plxdevices.com/PLXApp002.htm there is a good diagram there to look at!!

DohcVtecCrx

Your welcome dude!!

SCsol

iTrader: (1)

looking at the http://plxdevices.com/PLXApp002.htm What do you do with the o2 signal GND wire? And does this only work with Hondata?

ORcivicsi

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SCsol &raquo;</TD></TR><TR><TD CLASS="quote">looking at the http://plxdevices.com/PLXApp002.htm What do you do with the o2 signal GND wire? </TD></TR></TABLE>

Back from the dead to answer this question?