Quote:
Originally Posted by braxthnc
^^
so does this work fine for everyone who purchased one? was it able to log knock after all? any gripes about this thing?
thanks
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OK guys. I have had the chance to test the logger on my 99 VR4. I didn't really test it extensively since I have been pretty busy lately (we have a baby girl that's eating up all our free time...
).
Good news is that it works and it seems like it's logging knock and the sampling rate looks good (way better than the pocket logger anyways).
Bad news is that some data seems a bit off. TPS for example is at 13.75% with the thottle closed (the scanmaster and the AFC Neo both read 0% so it's not my TPS sensor). Also, I have some part throttle knock (5 counts max).
It worried me at first but I am pretty sure that I can attribute it to phantom knock (maybe due to the poly mounts)since I wasn't running high boost (12 psi) and it was a pretty conservative tune (10.8 to 11.5 AFR). Also, I revved the engine when the car was stopped and the logger showed 3 to 4 counts of knock repeatedly.
I tried to replay the saved log files and got the following error message "Input string was not in a correct format. Couldn't store <13.725490> in TPS Column. Expected type is Double." So I am pretty sure that there's something wrong with the TPS values.
Finally, I tried to display the logs on excel (CSV files) but data was all over the place. I have limited experience with loggers and with excel so if someone can help me there, I'll post these logs.
The only replay feature that I was able to use is the graph one. I am posting a screenshot of a part of my log. For clarity purposes, I have only included knock, rpm, timing and TPS on the graph. Feel free to comment.
Bottom line is I'll wait for the software version co-developped with tommy to run more extensive tests (and some free time!!! LOL) but, from the very short test I have done, I can say that things look promising for us OBD-II guys!!
GRAPH SCREENSHOT:
And that's the reason why I've been quite busy lately (can't complain as it's pure joy EVERYDAY!)
