I am completely new to the world of scan and tune. In fact I have not even loaded all of the software I purchased from Moates. My question concerns the use of a wide band O2 sensor when datalogging. I emailed Craig Moates and told him I had a 90 L98 and I needed all of the soft/hardware required to datalog, erase the chip, burn a new chip and also be able to tune on the fly.

He sold me several pieces of hardware but a wide band O2 sensor was not in the box. From the reading I have done it seems to me that without the wide band sensor you can not fine tune the AF ratio.

Am I incorrect?

One other thing while I have your attention, in referencing what ECM or chip number I have, what number should I be looking for? In the software it mentions certain drivers supporting certain model numbers. It is all Greek to me at this point.

Thanks/90Indy

 

If you have a 90 as your name indicates- then you need the 8D ECU file, or if your running the newest 4.0 Tunerpro you will just need to "import" the 8D file and it will become an xdf. As for the bin, you need to give specific info as there are lots of different bin files that would work on a 90.

The bin is the actual information on the chip- either stock or modified. The ECU or xdf file is just a translator that lets you interpret the bin. You could have the correct bin, but if you used the wrong translator file it wouldnt make sense. So your "translator" is 8D.

As for the wide band O2- craig doesnt sell one, so thats why it wasnt included. You can go to a parts store and buy a WB sensor- but that wont do anything for you. A wide band sensor needs hardware and software to operate it. There are companies like Innovative Motorsports and Zeitronix (just to name two of them) that sell these. I have the Zeitronix and think its great, and it was about $240 on a group purchase. A wide band will help you diagnose if you are way off on a tune, or if you are trying to tune to a particular number AF ratio. It has been discussed to great detail that each engine has its own sweet spot for WOT power production, it could be close to 11:1, or as high as 13:1. Using dragstrip testing or dyno simulation is the only way to know what your engine likes the best. What I am getting at, is that you need to tune for the best running engine, not to a specific number AF ratio. Whether or not a WB helps you get there faster is up to you and your tuning skills. I believe the more data you have, the better. I hope this helps and didnt just confuse you more.