Originally Posted by happyharrysco1
what is the problem with supporting these ecu's? hardware incompatability? or software? as their not obd2, I really want support for it and the jap daughterboard that tunes and runs on the knock maps isn't the best solution imo :/
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what is the problem with supporting these ecu's? hardware incompatability? or software? as their not obd2, I really want support for it and the jap daughterboard that tunes and runs on the knock maps isn't the best solution imo :/
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Each ECU has to be completely reverse engineered to assure hardware AND software compatibility. For example, even though the wastegate solenoid is connected to pin 111 on both the S13 SR20DET and GTiR SR20DET ECUs, that output is controlled internally by different I/O ports. There is a lot more to it than just figuring out where tables are in the firmware. You must also understand what values are used to index into the tables, how big the tables are, how the values in the tables are used, etc. This takes a lot of time and I have managed to complete 15 of them.
Originally Posted by Evlnxr
There are so many items in the bin file with it being so large, we have only scratched the surface and found the fuel/ig maps, and basic tuning info such as vvl, maf k value etc.
There are so many items in the bin file with it being so large, we have only scratched the surface and found the fuel/ig maps, and basic tuning info such as vvl, maf k value etc.
There are many items in a bin file, however the "we have only scratched the surface.." statement is untrue. With TunerCode, I have identified and documented every tunable constant, table, and flag in the bin, including logging of all pertinent calculated values.
Originally Posted by Cozzm0_AU
Tunercode doesn't have primary and knock maps, it has one map only and no knock control, so there's really not a big change there.
Tunercode doesn't have primary and knock maps, it has one map only and no knock control, so there's really not a big change there.
TunerCode includes knock control AND knock count and timing retard data logging. The new version for the NEMU board includes the ability to switch maps based on knock detection, which is well beyond OEM capability.
Originally Posted by Cozzm0_AU
As Evlnxr stated, there are vast physical hardware changes, that while with a bit of time spent on it a solution could be found. One issue is that its a far far far smaller market that offers very little extra/unique functionality compared with a DE ECU with tunercode/NEMU realtime board.
As Evlnxr stated, there are vast physical hardware changes, that while with a bit of time spent on it a solution could be found. One issue is that its a far far far smaller market that offers very little extra/unique functionality compared with a DE ECU with tunercode/NEMU realtime board.
Cozzm0_AU is in no way connected with TunerCode/NEMU development and is hardly in a position to make this statement.
Originally Posted by Cozzm0_AU
Bad fuel isn't an issue here, but at the same time, if your tune is that close to the edge of knock, i wouldn't be relying on the OEM knock control system as it isn't fool proof (from both false positives and false negatives) and isn't really used at high throttle levels and high rpm as there is just far too much mechanical noise to distinguish knock.
As we all know, knock at high load will be very dangerous and likely do damage anyways, which would usually be outside of the knock flagged area.
Bad fuel isn't an issue here, but at the same time, if your tune is that close to the edge of knock, i wouldn't be relying on the OEM knock control system as it isn't fool proof (from both false positives and false negatives) and isn't really used at high throttle levels and high rpm as there is just far too much mechanical noise to distinguish knock.
As we all know, knock at high load will be very dangerous and likely do damage anyways, which would usually be outside of the knock flagged area.
As we all know, there are many examples of faulty advice given by people who do not understand the operation of the OEM ECU.
Dave