iNVAR Posted February 20, 2012 Share Posted February 20, 2012 (edited) One knock does not make for a problem that needs to be fixed. If you consistently get knock in the same load and RPM ranges, then you need to address it. In addition, it looks like you hit the throttle, and then let off for a split second, and then went WOT. That can easily induce knock (pumping the throttle). Edited February 20, 2012 by iNVAR Link to comment Share on other sites More sharing options...
Chris GTO TT Posted February 20, 2012 Share Posted February 20, 2012 So i'm being paranoid for nothing? 2003 Baja 5MT 2016 Outback 2.5i Premium w/Eyesight Link to comment Share on other sites More sharing options...
iNVAR Posted February 20, 2012 Share Posted February 20, 2012 Not for nothing. You should do some more logs and see what happens. Link to comment Share on other sites More sharing options...
Chris GTO TT Posted February 20, 2012 Share Posted February 20, 2012 Yeah I need to pull some more logs, but i need to find a good place to make some pulls to 80mph without really worrying about police or other traffic. 2003 Baja 5MT 2016 Outback 2.5i Premium w/Eyesight Link to comment Share on other sites More sharing options...
06_legacygt Posted February 21, 2012 Share Posted February 21, 2012 I use the on ramps to a highway as long as they are pretty straight. by the time the your done logging your mostly likely going to blending in with the speed everyone else is going. I know here is jersey everyone is doing 80 or more on the parkway to its easy to blend in. although im doing more than 80 by the time my log is done 2006 Legacy GT 5EAT Perrin UP, SPT CAI, OBXR CBE, Catless DP, Perrin TMIC, Stage 2 AP tune Soon after BNR 16G, Infamous Tune Link to comment Share on other sites More sharing options...
Drogos Posted February 21, 2012 Share Posted February 21, 2012 I am new to logging. Can anyone tell me why there is neither FBKC nor knock sum in the list of parameters in the RR's logger application? I see: knock correction advance, FLKC and roughness monitor per cylinder, that's it in terms of knock monitoring. I have RR ver. 0.54 Link to comment Share on other sites More sharing options...
bmx045 Posted February 21, 2012 Share Posted February 21, 2012 are you looking at that list while the car is connected? it changes the available parameters in the list...also it's not listed fbkc its feedback knock correction Link to comment Share on other sites More sharing options...
Mega Users seabass07 Posted February 21, 2012 Mega Users Share Posted February 21, 2012 Must be. Link to comment Share on other sites More sharing options...
Drogos Posted February 21, 2012 Share Posted February 21, 2012 yeah I know it would be the full name but haven't considered connecting to the car THANKS. Kind of obvious too but I figured RR would list all parameters and then some would just not work on specific ECU. Link to comment Share on other sites More sharing options...
Drogos Posted February 21, 2012 Share Posted February 21, 2012 that was it. What's the difference between FBKC, FBKC 1 b, FBKC 4 b ? which one should I log? Link to comment Share on other sites More sharing options...
Mega Users seabass07 Posted February 21, 2012 Mega Users Share Posted February 21, 2012 1byte and 4byte. I think they will give you the same information though. Just make sure you are also logging knock sum so you know if you are seeing timing reduced from learned knock or an actual knock event. I use FBKC. Link to comment Share on other sites More sharing options...
Drogos Posted February 21, 2012 Share Posted February 21, 2012 so.....what's the difference between learned knock and actual knock event ...sorry for noob question Link to comment Share on other sites More sharing options...
bmx045 Posted February 21, 2012 Share Posted February 21, 2012 (edited) so.....what's the difference between learned knock and actual knock event ...sorry for noob question Feedback is a knock event, its literally when the knock sensor hears a knock. Learned knock is the ecu pulling timing in an area because it has heard feedback in the same area multiple times. It says "damn, it has been knocking here a lot, lets pull timing since its obviously a trouble area" so that next firing order doesnt actively knock and trigger more feedback Edited February 21, 2012 by bmx045 Link to comment Share on other sites More sharing options...
Spec B Posted February 21, 2012 Share Posted February 21, 2012 *late. With learned knock correction the ecu reduces timing in an area when you previously knocked. So lets say one day you knocked at 3200 PRM and 1.5 load. The ECU will remember that area and reduce 1.5 degrees of timing (only in that specific area). Next time you drive through that region (3200 RPM and 1.5 Load) the ecu will reduce 1.5 degrees of timin timing whether you knock or not. It is not really learned knock, it learns to correct (pull timing) in an area you historically knocked. Eventually, if there is no more knock in the region, it will slowly add timing back. An actual knock event, is what it sounds like. Link to comment Share on other sites More sharing options...
Mega Users seabass07 Posted February 21, 2012 Mega Users Share Posted February 21, 2012 Flkc will show you timing being retarded from either a current knock event or a previous one that it learned from. Knock sum is just a counter for knock events, so the number will just go up every time there is knock. Link to comment Share on other sites More sharing options...
Mega Users seabass07 Posted February 21, 2012 Mega Users Share Posted February 21, 2012 I type too slow on my phone. Link to comment Share on other sites More sharing options...
bmx045 Posted February 21, 2012 Share Posted February 21, 2012 Lol you two were left in the dust Link to comment Share on other sites More sharing options...
bmx045 Posted February 21, 2012 Share Posted February 21, 2012 Im on my phone in the train right now Link to comment Share on other sites More sharing options...
Spec B Posted February 21, 2012 Share Posted February 21, 2012 ^there are poeple in China killing themselves because of that phone. Link to comment Share on other sites More sharing options...
bmx045 Posted February 21, 2012 Share Posted February 21, 2012 And im thoroughly enjoying my rapid response to needy nubs Link to comment Share on other sites More sharing options...
Mega Users seabass07 Posted February 21, 2012 Mega Users Share Posted February 21, 2012 Feedback is a knock event, its literally when the knock sensor hears a knock. Learned knock is the ecu pulling timing in an area because it has heard feedback in the same area multiple times. It says "damn, it has been knocking here a lot, lets pull timing since its obviously a trouble area" so that next firing order doesnt actively knock and trigger more feedback But a single knock under the right circumstances will trigger fbkc. Feedback does not learn and is generally for any knock that does not fall into the fbkc category. The ecu will decide whether to pull timing for feedback or fine learning when there is knock. Link to comment Share on other sites More sharing options...
Spec B Posted February 21, 2012 Share Posted February 21, 2012 Typically the ecu goes to feedback KC mode when there is a quick change in load...usually under hard acceleration. Link to comment Share on other sites More sharing options...
Mega Users seabass07 Posted February 21, 2012 Mega Users Share Posted February 21, 2012 Feedback is usually tip in, shift knock, noise, etc. If you do a 3rd gear wot pull, any knock you get during the pull will be flkc. Link to comment Share on other sites More sharing options...
Spec B Posted February 21, 2012 Share Posted February 21, 2012 (edited) Absolutely not correct, at least not in my car. The very first post on this thread shows a wot run in which fbkc pulls timing. Edited February 21, 2012 by Spec B Link to comment Share on other sites More sharing options...
Mega Users seabass07 Posted February 21, 2012 Mega Users Share Posted February 21, 2012 Then maybe it shows up as both? I haven't logged with them in a while. I usually just do knock sum. I can tell you for certain that if I do a pull and get knock, it will show up on a learning view afterwards. Link to comment Share on other sites More sharing options...
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