Subject	Re: Ash, further explanation is needed...
Posted by	AshsZ (FABio) on January 15, 2003 at 9:50 PM
	This message has been viewed 167 times.
In Reply To	Ash, further explanation is needed... posted by Black Mammoth (VA) on January 15, 2003 at 09:21 PM
Message	The MSB in the map point is identified by the ignition control subroutine. This routine finds the datapoint in the map to use based on RPM and airflow. If the value is greater than 128 (or the MSB is set high), it tells the routine to branch off to the knock sensor routine, which is where it reads the greatest amplitude of the signal from the det sensor and refers to a knock limit map (which defines what amplitude/rpm/airflow is actual 'knock') and if knock is detected, it begins to raise the value of this register, but also according to a timer. Without overcomplicating things, it basically starts adding to this register and retarding timing based on the value of that register until it reaches a total value of 4 in the register. But, this value is reduced by a timer also so it essentially looks for 'x' knocks over 'x' time. If the value increases to 4, the system reverts to safety mode. If knock stops, then the value of the register decreases until timing is restored to the original value. I hope that made sense. :) [ ashleypowers.com ] [ agpowers@bellsouth.net ] [ Zemulator Information Sheet ] When pigs dance, you better get it on video... "You never really learn to swear until you learn to drive." -George Carlin
Follow Ups	The new and improved Detonation Dissertation. - AshsZ (FABio) 20:20:23 01/15/03 short version?!?! must have taken an hour to write (n/m) - Schoch(NC State Red Z) 20:25:57 01/15/03 My calculus teacher says.. - maxl_stylee 20:28:21 01/15/03 You and your teacher are right. (n/m) - Arturo C. 17:15:43 01/16/03 when are you planning to have this available for sale?? (n/m) - Ted(Snowflake Customs) 18:13:00 01/16/03 Ok so...... you mean JWT no good? (n/m) - Zboost 20:31:20 01/15/03 are you really that dumb? (n/m) - sbsTT(MD) 21:21:59 01/15/03 All signs point to yes (n/m) - Snoguitar 01:02:46 01/16/03 neurons = fried (n/m) - U ZCREAM (TTZ in '03) 20:31:34 01/15/03 wow. how did u figure that shit out. good job (n/m) - aliaZ 20:37:46 01/15/03 A lot of thinking and testing. :) This has only scratched - AshsZ (FABio) 20:54:50 01/15/03 ash,..any Ideas on an alternative mounting location for It. (n/m) - BarryGZX 20:44:09 01/15/03 Not really. It will be a matter of measuring the amplitude - AshsZ (FABio) 20:48:46 01/15/03 OK now that I am home and not talking on the phone, emails-> - Kyle(Houston) 20:55:48 01/15/03 any failing sensor that will throw you into saftey boost? (n/m) - z324u 21:11:26 01/15/03 No, not any - but most. I'd actually like to make a - AshsZ (FABio) 08:23:32 01/16/03 No problem, here's the answers... > - AshsZ (FABio) 21:11:46 01/15/03 So you are claiming that JWT changes a safe mod map???---> - Kyle(Houston) 21:18:49 01/15/03 Kyle do you have any SS clutch lines? I need two of them. - Carlos Ramirez 21:24:14 01/15/03 Perhaps you should digest this a little more and come - AshsZ (FABio) 21:53:46 01/15/03 roflmao :-) (n/m) - Kyle(Houston) 21:54:41 01/15/03 short answer. ECU retards timing when it sees knock - Carlos Ramirez 21:12:54 01/15/03 Right. Lets do this in steps though for the rest - AshsZ (FABio) 21:34:19 01/15/03 So basically you are saying ----> - Kyle(Houston) 21:43:39 01/15/03 No, its not dependent on how high you set it. It can only - AshsZ (FABio) 22:01:05 01/15/03 So you are stating here on the forum that JWT makes the---> - Kyle(Houston) 22:11:55 01/15/03 Yes, the same. At least for all of the programs I have - AshsZ (FABio) 22:17:27 01/15/03 But JWT does NOT set their low octane map for more---> - Kyle(Houston) 22:25:49 01/15/03 Right. By doing that, they cut the safety factor in half. - AshsZ (FABio) 22:41:07 01/15/03 Hmmmm...very interesting---> - Kyle(Houston) 07:05:30 01/16/03 I have no reason to give misinformation about it, not - AshsZ (FABio) 08:21:51 01/16/03 agreed (n/m) - sbsTT(MD) 11:24:43 01/16/03 My View on all of this. - Z1 Motorsports 23:31:02 01/15/03 *applause* well said... (n/m) - spicyZ 09:04:09 01/16/03 Do this test ash.. - Carlos Ramirez 09:26:37 01/16/03 Ash, further explanation is needed... - Black Mammoth (VA) 21:21:50 01/15/03 Re: Ash, further explanation is needed... - AshsZ (FABio) 21:50:50 01/15/03 Makes sense, but... - Black Mammoth (VA) 22:03:32 01/15/03 no, it only reduces it by one degree for every value - AshsZ (FABio) 22:12:49 01/15/03 Ok, that makes sense...everything else sounds good to me... - Black Mammoth (VA) 22:18:38 01/15/03 Ida. :) Interactive disassembler, a testbench ECU with - AshsZ (FABio) 22:37:29 01/15/03 damnit, cant you cliff notes your posts! (n/m) - genic 21:24:02 01/15/03 he's the perfect proffesor or politician. - niXit 21:27:25 01/15/03 Re: he's the perfect proffesor or politician. - DustinR 22:09:07 01/15/03 Ok, here's where I'm curious about the JWT. - sbsTT(MD) 21:39:23 01/15/03 VERY good question. I have an even better answer for you! :) - AshsZ (FABio) 22:28:44 01/15/03 cool, I understand now...BUT - sbsTT(MD) 22:42:58 01/15/03 That's understandable. Just take a look at the empirical - AshsZ (FABio) 22:48:32 01/15/03 Maybe JWT chips which you tested are >>> - VECTOR 22:52:12 01/15/03 Perhaps. I dont know what I dont know. - AshsZ (FABio) 22:56:02 01/15/03 Great analysis and better post Ash. - Arturo C. 17:47:16 01/16/03
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