Wide band now Tweecer rt later.

gt-351 said:

I'm no longer using my egr.

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Daggar said:

I've got the LM-1. My only complaint is the bulky case.

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Daggar said:

No no no...

The LM-1 is capable of data logging all by itself. It requires no assistance from any other piece of hardware to do it. It will data log just one wideband unless you also get an Aux Box and wire in a second as an external sensor.

If you want to data log your wideband signal through your TwEECer RT then you would use the analog output from the LM-1 and wire it into the EGR position sensor wire going to your EEC. This wire is monitored by the EEC for EGR position but it's inputs are not used in any way by the EEC for tuning or making adjustments. In other words, aside from being able to spit out a code for the EGR not working, it's worthless. Because of that, folks use it to monitor Air Fuel ratio instead. The purpose of doing that is so when you display your tuning bar graph (you can display 13 properties or sensors at a time) you can see your AFR in relation to everything else you've datalogged with the TwEECer.

So in a nutshell. You do not require a TwEECer to datalog but it's nice to have the info there so you can view it all at once. The TwEECer software has a function build into it that allows proper display of AFR through this EGR position sensor wire.

By the way... if you DO still have your EGR hooked up... It does not require that this senor wire be hooked up to it to properly operate. The EGR will function just fine without the EEC looking at it.

The TwEECer will data log ALL 02 sensors who's signals are routed through the EEC. The stock sensors are narrow band and their data is pretty much worhtless for anything other than telling the EEC that AFR is stoich.

So in effect... you'll get data from 3 02 sensors. But only one of them is a wideband.

Did that answer your question?

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