I’ve been wondering why the O2 voltage on all of our GN’s jumps around so much while the wideband a/f ratio seems steadier. It seems that this is intentional. I have read that the computer adjusts fuel a zillion times a second to cause the voltage in the sensor to jump over and under a central point. It does this (I am told) to enable the catalytic converter to do its job better. It seems that some aspects of catalytic converting are best done at rich conditions and some lean conditions. This intentional jumping around accommodates that while not causing fuel to be too rich or too lean.
This sounds good but that got me to wondering. I don’t think my GN is the only one on the planet without a catalytic converter. Has anyone ever thought of disabling this feature Can it be done? Would it matter?
Another sort of related question. I have read that Eric’s turbotweak chips “disable” EGT function. If this is so what is the advantage of doing that? And does that mean the EGT gear should simply be removed to clean up the driver side of the engine?
This sounds good but that got me to wondering. I don’t think my GN is the only one on the planet without a catalytic converter. Has anyone ever thought of disabling this feature Can it be done? Would it matter?
Another sort of related question. I have read that Eric’s turbotweak chips “disable” EGT function. If this is so what is the advantage of doing that? And does that mean the EGT gear should simply be removed to clean up the driver side of the engine?