SO getting into the basics ive jumped head on into using tunerpro on my 89 tbi. I borrowed my friends moates setup and he gave me the basic rundown on loading the needed files and setting up the logging, ive pulled the datalog for various sensors and i can see what theyre doing, problem is idk what its SUPPOSED to look like, mainly the O2 sensor, i know theyre supposed to bank high and low rapidly, mine would spike on the graph like "normal" then it would spread out, which as far as i can tell this isnt normal. Can someone post a link to what a normal O2 stream looks like? Better yet I guess my overall question is where can I find the information on reading and interpretting what the graphs are showing? I compared my graphs to my friends and they look nothing alike, then again hes running a 7730 SD TPI which if i have been informed correctly is a much faster response system. His O2 looked like a polygraph where as mine looked like it was on crack, ive replaced my O2 multiple times the bosches keep crapping out on me :/

A simple link or quick explanation would work, Ive owned my car long enough doing it the paperclip route and hand testing sensors but im delving into the datalog world so id like to be efficient with it

TIA

 

The O2 sensor value won't be close to looking correctly. The data logging rate is just too slow. IIRC, it is a packet of data every 1.8 seconds. With the O2 sensor crossing 450 mV likely twice is that amount of time.

Instead of Bosch try a Denso O2 sensor.

RBob.

 

I'll see if I can take a screenshot to show you, i figured it was too slow but the o2 is showing signifigant differences at times I can't describe it lol

or would i be able to post the file onto the forum so it can be reviewed? idk if that violates any rules

 

You can post data logs, no issues with that.

Here is a picture of what the O2 signal looks like. Note that this is 17 packets a second.

RBob.

 

ok i had to put the file into a zip to get it to upload, dunno if this info is needed but its axks1108 bin, 61v3 xdf, 61.adx. My friend found the needed files, i just ran with what he gave me lol