05-19-2013, 08:26 PM
Hittin' Boost & Cones
Join Date: May 2007
Location: Cromwell, Connecticut
Total Cats: 10
MS1 custom wideband curve?
I have been struggling with voltage differences between my wideband and my MS1. It seems to be about .5 Lean on the megasquirt throughout the entire range. I have tried matching the grounds with no success. I am now considering doing a custom linear curve but I need to know what is involved to do this on MS1.
96 standalone setup
MS1 running 10g hires
PLX wideband powered by the ECU 12V directly at the boomslang harness
My grounding layout includes all factory grounds in tact plus:
-8 gauge wire from the battery to the rear deck right next to the ecu. This is where all my stuff is grounded. Knocksense, PLX, etc. My boomslang ties into this with both sensor grounds & power circuit grounds.
-8 gauge wire from the rear deck to the rear of the intake manifold.
What is needed to do a custom curve? new .inc file & reflash the firmware? Is it worth it? If I choose to just offset everything in tunerstudio does anything other than the AFR table need to change?