I've been searching for a while and couldn't find what I was looking for. So, I'm curious what the most effective setup is for logging data on my C6Z? Primarily for future tuning purposes.


I have a spare laptop for any software needs.


Just curious what most people use to log data during WOT, etc.


Those AIM data loggers are great, just pricey.

 

Get HP tuners..

 

HP Tuners.

You'll need a wideband too

 

Thanks!

 

YES HP Tuners OR EFILIVE----They both have several pre-made what they call PIDS that you can add to the data logger to read so you can make changes to sprak timing and fuel
The most used PIDS for tuning are :
Actual timing
Knock retard
Front 02 sensor Millivolt readings both left and right banks
Long term fuel trims--using the MAF HZ table and cylinder air

 

most widebands come with a logging software and an rpm input, so you can logg afr vers. rpm for free. just saying.

 

When you say data logging I assume you mean programming as well. HP Tuners actually offers both a standalone logger and a full function Scanner and Editor Suite. If you have an a6 automatic, I would recommend HP Tuners and even more now because they have introduced a integrated Virtual VE coefficient calculator in their 2.25 Beta version release.

There is alot of info out there or you can find on-line training to help consolidate and decrease your learning curve.

Ed M

 

If I wanted to do street A/F logging how would I utilize a wideband sensor with the stock exhaust?

 

Have an additional O2 sensor bung added BEFORE the cats (if you have them).

Exhaust shop can do it (did it on mine) in < 30 minutes.

 

Can the PLX be used for dual purpose? Remove stock O2, install the PLX sensor, and wire it so it does both wide band and narrow band?

I'm just learning, but if this will work, I'd like to try it without installing another bung.

Bobby

 

Yes and no. A wideband is a wideband.. totally different than a narrowband. You can't just connect it to the stock O2 wiring and expect it to work, they are totally different sensors.

BUT.. most wideband controllers come with a "simulated" narrowband output that you can connect back to the stock O2 wiring. I've done it that way and it never behaved the same as a narrowband sensor. It was always slower than the original sensor and one time my controller error'd out.. which basically flat lined the fake narrowband signal, which meant the ECM thought it was running lean.. so it kept adding fuel to the point that the car barely ran. I luckily had my laptop with me so I was able to change some things in the tune to make it work, but if I hadn't I'm not sure what I would have done. I guess the ECM probably would have eventually figured out something was wrong with that "sensor" and thrown a code/disabled it, but I'm not sure how long that takes.

After that though I try to steer people away from doing it that way.

But.. to answer your question, yes, it is possible to get away with not adding an additional bung, though they're like $40 and take < 30 minutes, so it was just as easy to just have it added vs. running the extra wiring to make it work with only one sensor

 

or just screw it in instead of a rear sensor and leave the front ones active.

 

Not if you have the stock exhaust w/cats still

 

why? works for me. a local tuner who does race cars sticks his motec in the exhaust pipe.

 

I agree. Post cat results can/will be off depending on the condition of the cat. Why not have the simple bung installed pre-cat if you are going to go to the trouble to tune your own car?

 

I use the AEM failsafe gauge and log with there software @ track/ street, works great. What's also cool is you can clear it and do some data logging then hook up to the computer and save the logs. So laptop doesn't have to be in car / connected if it doesn't need to be!

 

Can do that with HP Tuners pro too.

 

Thanks for all the feedback, it looks like i'll be going with the HP Tuners suite. I'm installing headers soon and wanted to tune it myself.