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Reanimotion Reanimotion is offline
umop apisdn
Join Date: Jun 2014
Location: Brisbane, Australia
Posts: 507
in your logs, compare "AFR" and "AFR target", they should be pretty close to each other for normal operation of the EGO Correction.

VE needs to be set to get AFR as close to the target as possible before EGO is turned on
Then you have the ability to tune the EGO response by adjusting the PID section and Authority value
Authority sets the overall min/max limits of any allowable change
PID sets how fast and how far those changes are between calculation steps, and either creeps up on the desired value or quickly attacks and overswings then corrects again oscillating around the target.

It might also be worth looking at softening the MAPdot response to make sure accel/decel is not being triggered by small MAP changes, as there seems to be a lot of wiggle in the MAPdot line you have there. EGO Correction is small where MAPdot is large so it might be turning off at thos points.

The advantage of FrankenCIS is we have the full range of MegaSquirt capabilities to play with, the flip side of that is there are lot of interactions between those features and half of the complexity in tuning is getting everything balanced in the system so it behaves well by responding both quickly and correctly.
1981 928S 4.7 ROW with KE3-Jetronic and Franken8 (AEM Inifinty) "Be the man your dog thinks you are."
Yes! mechanical/hydraulic constant flow injection can be managed by a modern EMS
Old 09-30-2018, 04:15 PM
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