Quote:
Originally Posted by Compelica
Thanks, looks like shifting more timing to the KCA table would work well for now. Am not intending to tune for RON95 at the moment, but to just get more safety assurance.?
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As an interesting side note on this topic - the engine's calculated torque formula (from A to V) is:
[ IAM * Calculated Torque A ] + [ (1.0 - IAM) * Calculated Torque B ]
So, if you're detuning your base timing tables to increase IAM from 0.7 to 1.0, you may want to attend to those tables if throttle response worsens afterwards. The ECU seems to think IAM can go below 0.0625 (as in, one-tenth of 0.6!) so I'm quite curious if you saw values below the 0.7 default before your tuning changes. I was looking into this because Cali 91; on summer gas this year, I'm seeing IAM 0.7 advanced by +4-6 or so, and have decoded a lot more IAM code since 2022
Also note that if you were seeing IAM 0.3-0.4 or lower before the re-tune, that's the (<0.3) Normal / Safe (>0.4) threshold for the AVCS tables.
EDIT: Only for automatics, but still!