I used cipher to datalog my 03 Z today, and I found there is no AFR in the log. I looked up Uprev website in Q&A, it says
"AFR cannot be logged directly from the ECU on these vehicles since they do not have wide band O2 sensors from the factory. The ROM editor DOES support logging AFR from the Innovate technology WB O2 sensors directly so that AFR will show up in your logs along with all the ECU data."
Sorry if this question brought up before. I searched around in the forum and cannot find the answer. I just wonder if I change to Bosch LSU4.2 WB O2 sensor, then it will give me the AFR log? Thanks!

 

The innovate has a serial interface so you can connect it to your computer and log the ODB2 values via Uprev, along with the Innovate wide band AFR via the serial port. You can't just change your sensors and have Uprev pull the numbers because the ECU itself is not set up for wideband sensors.

 

I have an AEM wideband A/F gauge wired up, is there a way to tap into that and log those readings?

 

Osiris can only read Innovate WB's.

 

 

so I don't need a WB O2 sensor when use innovate serial interface? But I do not get it how can innovate read AFR from NB O2 sensor? is that accurate? Do you know which innovate product can support that?
BTW:I am reading ur tunning 101 thread Sparkle, it is really helpful! you must be a MASTER now

 

The Innovate LC-1 basic kit includes the controller, sensor and serial interface for around $200, you need all 3 plus a bung to install it. When connected to your laptop along with UPREV it will log your a/f in the UPREV software.

 

Thanks Jime, will do that soon

 

Hi people:

Jime or anyone else who knows about this problem can please clarify me about this?

I just have this same problem with my G35 2003 TT Osiris tune. I saw Innovate now have the LC-2 Digital Wideban Lambda version.

So to know if I understood good, with the LC-2 unit I can still use my AEM A/F Gauges and finally get to read the correct engine AFR?

Or do I need to replace my 2 AEM A/F Gauge for 2 Innovate A/F Wideban Gauges plus the LC-2 Unit?


Thanks

 

Does your AEM WIdebands have a 0-5V output?
If so you should be able to hook that up to your laptop to log.

I have the LC2 Kit, the kit is amazing BUT everytime they loose power they have to reheat. Even if you've been driving for hours. So mine is wired to a toggle switch.

 

Thanks for the reply.

This are my actual gauges, I bought them for this project many years ago (since then project has been in pause, I got to move and so on) I don’t remember the actual gauge model to search for their specs, but I’m pretty sure they are not the top expensive ones.

The car used to start up just fine, problems comes when engine build temperature and then the A/F ratio goes crazy. The check engine light goes on also. We check for code and it saids “Misfire”
Also i can remember my tunner told me one engine bank sometimes receive too much gas.

We check the FRS, Gas Pump, Gas Regulator, Fuel Rails and everything was normal. I even change injectors for brand new ID 725CC and new injectors harness, but problem continues. This got me frustrated and I pause the project.

Now trying again to find a solution to this.

Any inputs appreciated.

Thanks

 

It's a known problem with the OEM plenum that certain cylinders receive more air then the rest. If you do a little digging maybe @bealljk knows the vaules, but there is a table on here that shows how much to trim the fuel to compensate for the air.

I think most AEM Digital guages have a 5v output to connect to ECU's

 

Yea, the passenger side bank gets better airflow and thus runs a little leaner than the drivers side.

Yea - one of the pins on the AEM wideband gauges outputs a 0-5volt analog signal to the ECU (or logger) to determine a given AFR.

Do you have the LSU4.2 sensors or the LSU4.9 sensors. I bet you have the 4.2 which are calibrated from the factory.

I would figure out why they lose power ... I would peel back the wires and look for a cut/frayed wire.

 

I will check on those sensors and look if they said which model they are. Also check the wires. I am pretty sure they are the factory ones.

Wiring or something electrical is my main thought for this problem.

Will update about this.

Thanks for the reply.