Issues connecting with zeitronix wideband

[leftynridge]

Spoke to zeitronix and they walked me through a series of steps to make sure that it was not anything simple. I have checked power connection and I'm getting 12v. So at least it should show some connection and I'm getting nothing. No tps, no rpm nothing. I have serial to usb port and it is connecting ok. It is connected to the right port checked several times. After running through all this they told me to send the unit to them and it came back good connected just fine. Replaced sensor just in case but still nothing. I even tried it on three different computers. Mapecu works and connects just fine with the same cable, same port and everything. So any help would be great. Something I might be over looking. Anything. Thanks

 

[leftynridge]

I just checked the wiring again and the map ecu and the zeitronix wideband share some of the same wires like the VTA wire (TPS), IGT wire (RPM), and the +B1 wire (EFi main relay) for power. The grounds are different the map ecu runs off of E1 computer ground and zeitronix runs off E01 power ground. Didn't know if this would effect anything but is it possible that the zeitronix could be effected by sharing the same power. Any input would be helpful. Thanks

 

[TurboStreetCar]

Are you using the newest software? It shows the ports and if any data is available on each port.

 

[leftynridge]

Yes using the newest software and it says no data found but has power.

 

[isnms]

Did you use the same USB-Serial cable on all three different computers? Have you tried a computer with a real serial port?
Did you get the ZT-2 display?
There is a wiring write-up in my sig you could use to verify your wiring.

 

[leftynridge]

Yes used the same usb to serial cable on all three computers. One had a serial connection and tried it and it still didn't work.
Not sure what you mean with ZT-2 display
Yeah I have the write up and followed as good as I can cause my car is a 88. Just matched the wire codes with the right connection. I found a pre 88 ecu wiring diagram that I went back in forth with to match everything.

 

[isnms]

this is the display:

but I guess if you don't know what it is then I suppose you don't have one.

 

[leftynridge]

Got ya. I saw it on there web site. But no I don't have one just use the computer. When I bought the car it was already installed. The guy I got it from said it worked when he had it so I'm lost on trying to figure out what it could be. I've tried everything.

 

[isnms]

You probably confirmed you had the correct serial port selected in the software as outlined here:
http://www.zeitronix.com/zdl/zdl_setup_determine_com_port.htm


Then checked the signal harness for 5V as described here:
http://www.zeitronix.com/zdl/zdl_setup.htm

6. What if the screen does not show any data?

Once the Zeitronix unit receives power there is a warm up period for the sensor. After about 15 seconds data will begin streaming from the Zt2. This data will then be visible on the LCD display and available for logging through the serial cable.

With the software running and setup according to question 5 above you can press the enter key to begin or end data logging.

If no data is logged and if you have an LCD or ZR-1/ZR-2 gauge then connect this gauge directly to the data port of the Zeitronix device. If this gauge does not light up then you unit is not powered up. Please check your power and ground connections.

If this works or you do not have a display connect the serial cable directly to the data port of the Zt-2. Double check your power and ground connections. Check the yellow wire of the signal harness for 5 Volt signal. If no signal is found please recheck your power (RED wire) for 12V power and double check that your ground connection (BLACK wire) is a clean good ground back. Please contact us at sales@zeitronix.com for additional assistance.

 

[leftynridge]

I have checked the com ports several times to make sure that it is the right one. So I know that is ok.
When I called zeitronix one of the steps we checked was to see if the yellow wire had 5v and it was good.
I do have newer software downloaded but I'm positive that this model was made before 10/15/09. However, I was trying to use the older software before and it did not work either.
Do you think that the power wire from the zeitronix unit might be interfered with the mapecu power wire since there using the same source. +B1 efi main relay.

 

[isnms]

Do you think that the power wire from the zeitronix unit might be interfered with the mapecu power wire since there using the same source. +B1 efi main relay.

No, not if the 5v signal is good.

Check the continuity of your RJ11 to serial cable (DB9):
RJ11 - DB9
1 - 3
2 - 2
3 - 7
4 - 5

(If it's a 4pin RJ11)

 

[leftynridge]

Everything seems to be ok. Zeitronix even checked it when I sent the unit to them and everything was ok there to.

 

[isnms]

Give this a shot. I'm not sure if the control box will give an output if there is no o2 input, but try:

Disconnect the RJ45 (o2 connector) from the control box. Then startup and wait for thirty seconds or so then see if there is any input to your notebook i.e. rpm, tps, boost, vf if you connected it...

 

[isnms]

Are you logging boost, with the same sensor for your MAPECU?
If so, I don't know how/if that would work. Ask Zeitronix for info about that.

 

[leftynridge]

Still nothing

 

[isnms]

Check on that boost sensor configuration.
You should get data with o2 disconnected.
Verify your wiring with signal name not wire color.
Check your notebook - software configuration, hardware configuration.

You sent your control box and data cable to Zeitronix and they tested your control box with your data cable to be good... then...
It is either your wiring or your notebook.

You should verify all your connectors, male and female. Look for bent pins, pins not set all the way in...

 

[leftynridge]

Ok I will check on these things to.
I thought that it would have to be the wiring or the the notebook to but I checked the com port and it is correct.

Check what with software and hardware configuration? Would the same problem happen with three different computers.

As far as the wiring goes I unplugged the harness that connects the zeitronix unit and turned the car on and checked with a volt meter on the power and ground source and it was good. As far as the items that were sent to zeitronix the harness was the only item that stayed with me because it was it was wired in already but everything else went.
I also verified the the signal name with the wiring diagram that you listed with the pre 89 ecu wirng digram signal names for each wire.

---------- Post added at 02:52 PM ---------- Previous post was at 02:46 PM ----------

I using Map Ecu to log boost

---------- Post added at 02:53 PM ---------- Previous post was at 02:52 PM ----------

I using Map Ecu to log boost

 

[isnms]

Would the same problem happen with three different computers.

With the same USB-Serial cable. <--- common denominator

Are you connecting the ECU and the ZT-2 to the same serial port? Are you running both programs on same laptop? Only one program at a time can use the serial port.

Everything you sent to Zeitronix tested good. The previous owner said the ZT-2 work. Your cable and notebook are the new factors.


You seem to be double posting.

 

[leftynridge]

Yes both programs are on the same lab top. I realize that you can only run one program at a time. I haven't got the point where both programs needed to run at the same time because I haven't figured out why the zeitronix program will not work. I do use the serial port for both program though. Just not at the same time. Once I get the zeitronix program working I will need another serial to usb cable to run both.