Hondata

From looking around a bit, it seems that the JDM OBD1 P72 ecus output a positive signal for the IABs, that seems to be the same as what the AUDM OBD2a Preludes take. Is this true and does it mean no modification is required?

Hello,

I have an OBD2a AUDM 5th gen prelude.

I am installing a JDM p72 OBD1 ecu with a Hondata s300 in it. Do i need to enable "invert IAB output" in Smanager? Or are the polarities compatible between OBD1 JDM p72 and OBD2a Prelude?

And does this invert iab checkbox remove the need to do this ...

I am trying to add a Hondata S300 to my AUDM H22a4 Prelude. I want to keep my intake air butterflies IAB and knock sensor capability.

I have heard a p72 ecu is necessary for IABs but have also heard that the signals for the IAB and knock differ between many ecus versus stock. They are also very ...