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SVTPerformance's Chain of Restaurants
Road Side Pub
ECU Tuning
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<blockquote data-quote="thomas91169" data-source="post: 9207741" data-attributes="member: 40530"><p>yeah pretty much.</p><p></p><p>you cant do much without knowing your exact o2 measurements. With a DSM you can do a little just reading off the narroband o2's (0-1v sensors) but you have to know what voltage they need to be, ie "0.94v, 0.96v, 0.92v" in order to be somewhat in the a/f range you want, and even then its sketchy at best. However they have a knock sensr to fall back on, so if you tune too lean or too much timing and get knock, the ecu will always override your settings and pull back timing and/or add fuel to compensate. You cant do anything really unless you have zero knock, or disable the knock sensor alltogether. </p><p></p><p>Evo tuning with that software is a little harder, because you can royally screw yourself over if you make the wrong changes, and takes a little more time than something you could pull over and do in 5-10 seconds. DSMLink V3 (or ECMlink as it is now) is like that, however V2 still uses bar and graph style tuning (an option for V3), however with column/row style tuning like that, you can do a little bit more and get even better results, however its less user friendly, especially when boost is involved and the ecu runs its fuel/timing map off boost and loading values. Kinda why i never really want an Evo, STi or SRT4, i dont like that the ecu has control over boost and runs its parameters around that.</p></blockquote><p></p>
[QUOTE="thomas91169, post: 9207741, member: 40530"] yeah pretty much. you cant do much without knowing your exact o2 measurements. With a DSM you can do a little just reading off the narroband o2's (0-1v sensors) but you have to know what voltage they need to be, ie "0.94v, 0.96v, 0.92v" in order to be somewhat in the a/f range you want, and even then its sketchy at best. However they have a knock sensr to fall back on, so if you tune too lean or too much timing and get knock, the ecu will always override your settings and pull back timing and/or add fuel to compensate. You cant do anything really unless you have zero knock, or disable the knock sensor alltogether. Evo tuning with that software is a little harder, because you can royally screw yourself over if you make the wrong changes, and takes a little more time than something you could pull over and do in 5-10 seconds. DSMLink V3 (or ECMlink as it is now) is like that, however V2 still uses bar and graph style tuning (an option for V3), however with column/row style tuning like that, you can do a little bit more and get even better results, however its less user friendly, especially when boost is involved and the ecu runs its fuel/timing map off boost and loading values. Kinda why i never really want an Evo, STi or SRT4, i dont like that the ecu has control over boost and runs its parameters around that. [/QUOTE]
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