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Read button on Knock/TPS are not enabled!

Posted: Wed Apr 08, 2009 2:54 pm
by A4XRBJ1

I started my engine today for the first time with the Hondata, first start was ok but after a couple of starts it takes about 5-7 seconds to start.

I wanted to check if my TPS settings are right, but I can't click on the read button as both are constantly disabled. Please note that I'm connected to the Hondata and the ignition is on, even though the engine is not running.

Newest version of KManager



Posted: Wed Apr 08, 2009 3:15 pm
by Spunkster
You must be datalogging fo rthem to be able to read.

Posted: Wed Apr 08, 2009 3:25 pm
by A4XRBJ1
Spunkster wrote:You must be datalogging fo rthem to be able to read.
Blush, ok, now I'm smarter. Problem solved. What still puzzles me, I've got a negative reading for the minimum. I though 0 volt was the only possible minimum?

Thanks Spunkster,


Posted: Thu Apr 09, 2009 6:43 am
by Hondata
The TPS sensor may read a negative percentage but this does not mean the voltage is negative. 0% is approx 0.45V

Possible bug found with this

Posted: Thu Apr 09, 2009 4:41 pm
by sinistrs2k
Wasn't sure if I should start a new thread on this or just use this one, but I think i've found a bug with these TPS settings.

Like the OP, when I do a "read" I get -4% for the minimum setting. This is fine and definitely seems to help with low throttle issues, particularly with fuel over run kicking in at the wrong time.

The issue appears to be that when I do a "save" the value that is written to the file is 1 higher than what is in the field. For example, after the read I have -4% displayed in the minimum field. If I then do a save, close the file and reopen it, I now have -3% (actually -2.9%). If I then immediately hit the save button again, close the file and re-open it, I know have -1.9%. This continues until it hits 0. Just closing and re-opening the file doesn't change the value, so it seems to be changed when Save writes to the file.

After doing a few saves, I will have completely lost my TPS calibration and have to redo it. I tested this with versions,, and and on 2 different PCs.


Posted: Fri Apr 10, 2009 7:50 am
by Hondata
Thanks for pointing that out. It is a rounding error. I'll fix this for the next release.