I am looking at getting the ecuflash set up in my car and using that as a data logger. I have never used a data logger and was wondering if it recorded your A/F ratio. I also need a new front O2 sensor so I figure wideband, but I want something that I can fine tune my A/F ratio with thats cheap and usefull any suggestions?

 

EcuFlash is not a datalogger - it's free flashing software. EvoScan is the laptop-based datalogging software that uses the same cable as EcuFlash. Whatever datalogger you get in the future will not read wideband AFRs unless you send the wideband O2 signal to it, but it will be able to get narrowband O2s (EvoScan can receive input from several different widebands currently). You can't run a wideband in the front o2 sensor location unless it has a split wire that sends the narrowband o2 signal to the ECU (must have this in order to run in closed loop mode), then sends the wideband o2 signal to the AFR gauge or datalogging device.

Lastly, there is an entire EcuFlash sub-forum below where such things are discussed...

 

Yes I didnt mean to say that ECUflash is a data logger. But thanks for the rest of the info. What are your suggestions for fine tune adjustments to the A/F ratios? And will there be a difference in the ratios from the datalogger on the front NB and the ratios I would get with some sort of A/F controller on the rear with the WB?

 

intriguing.....can you please elaborate a bit more on this?

 

Just get a wideband. Narrowbands aren't nearly as accurate, and you won't be as safe trying to tune with one.

There's some great prices on WB in the vendor for sale section.

 

you can replace the front o2 sensor w/ a wideband from PLX devices website and wire it in using the directions they provide. You will then have a wideband and your stock ECU will see the same exact AFR's you see

 

Thanks for the link, ries. That is what I was referring to.

Dupont, you normally weld a new bung into the DP for the wideband - it doesn't go in the rear O2 bung nor the front O2 bung.

 

You know, that HDD Gauge/Sensor chain setup looks cool as hell. I'm sure it's a tad $$$$ though. =D