I got a heck of a deal on a Wideband set-up. It is a Zeitronix ZT-2 (older pre 2010 style). It has a display as well as cable to hook to laptop for datalogging.
What I'm needing help with is more opinion related.
The inputs to module that will be displayed or datalogged are:
Air fuel ratio , obviously
TPS signal
RPM/tach signal
Then there is an input for users choice of one 5v signal (it will be displayed/logged as 0.0-5.0 volts so whatever I choose will have to be compared to voltage vs. info table irregardless of choice).

This is going on a 1991 L98 Vette and I'm looking for suggestions for what would be the most logical input to use, at this point I'm leaning strongly towards to the MAP sensor as I cannot see anything else that would be any more helpful.
The 5v signals I can think of are as follows
Coolant temp sensor (wouldn't be doing a run until the car is at operating temp anyway and the temp guage can verify this so I can't see this being much help)
I.A.T. sensor, but I don't see the point of logging this
TPS but as already mentioned there is an input for it already
Oil temp sensor, can't see the point of logging
Which leaves the MAP sensor
As you can tell I've kinda already made up my mind, but any input would be valued.

Sorry, I know this would make more sense to put this thread in the tuning section, but there is lot more traffic here.

Thanks in advance for any input you guys can give.
I'll post pics and results as start/complete the installation.

 

I use a wideband for recording 1/4 mile runs. All I need is rpm and afr. I suppose you could record map or tps voltage but for wot runs, that isn't necessary. At part throttle, your motor will be running at 14.7 so other recordings other than afr may not be of use.

 

........ I use an LM2 wideband with a MAF set-up ... I would recommend the MAP input mainly because RPM and Load are the primary factors on the ECM's decisions regarding spark advance and fueling

 

Thanks for the input guys.

Willie the main reason I'm wanting to connect the inputs is because I can. I realize for W.O.T. pulls TPS and MAP aren't needed, but as I said the capability is there and if I'm going through the hassle of installing all this I might as well utilize all I can and it's only a matter of connecting 2 more wires.

 

I finally got my LM1 to work with the rpm converter cable etc.
It has five inputs, and a digital dash on your laptop to monitor. The LM2 and newer hand-helds by innovates have very good reviews. The more data you download, the better tune you will get IMHO.

 

My LM1 can monitor and record 5 different parameters but I am too simple minded to be able to utilize the other 3.

 

Willie seeing as how your car runs apparently you're getting all the data you need.

 

My aem uego widebands analog 0 to 5 volt is plugged into my air conditioning pressure switch goes. On my 93, it too is a 0 to 5 volt input.

I removed the ac for performance reasons, but I imagine you could still do this with ac if you replace the ac pressure transducer with the wideband input everytime you want to datalog it.

Its nice doing it this way because all my afr data (in terms of ac pressure) is referenced to my other stock ecm data.

There is a linear equation that you convert ac pressure to to get the afr

 

Thanks for the info, I'll have to look into this as well when hooking everything up.
I'm hoping to get started on it this week. I have the interior torn apart right now trying to route everything and figuring out where and how I'm going to mount the display.
Still have to get the brakes straightened out as well.
Have a local cruise in less than two weeks that I'd really like to have the car back together for.