2 bar tune for Turbo LT1 F-body possible with '93 ECM? DA3

[hotrodf1]

just to detail what we're doing with this hacky fixed baro patch (want to modify as little as possible)

- @0xC366 instead of setting baro=map during its update routine if conditions are met, it simply sets baro=baro and moves on.

- @0xA3CF during the keep-alive (or other update) routine (which ensures map never exceeds baro), it compares map to baro, but doesn't actually store the value (i just changed STAA to LDAA, so it's loading the value again and continuing on)

- @0xE5E4 we override the initial value for BARO (0xFF / 104.5KPA) to a new fixed value (about half of that for your two bar thing)

keep in mind the bin offset is 0x8000 and disassembly addresses are relative to 0x0000.. so if you're looking at the bin, subtract 0x8000 from the addresses above

When I subtract 8000 from E5E4, I get 65E4. I notice the address for the barometric scalar in TunerPro definition file is 65E5. Could this be why manual baro setting doesn't work?

[hotrodf1]

When I subtract 8000 from E5E4, I get 65E4. I notice the address for the barometric scalar in TunerPro definition file is 65E5. Could this be why manual baro setting doesn't work?

Tried changing that address, no success. Baro stayed right where it was at (like 67 or something). Thought I was one to something. Maybe it has something to do with the "non volatile memory" - from the disassembly notes ? It's like the ECM is reading the value stored instead of writing what we want it to.

Also tried to just disable part of the patch. If I disabled either half of the patch, it did not update the Baro setting at key on, that surprised me. Disabled the whole patch, then it would update Baro to MAP of 55kPa. BUt upon driving, it would update Baro to something under boost eventually. Something in the high 60's running the tune rich.