I have a 2002 GTP sedan with many mods that I have installed including catless downpipe and rear-O2 sensor Delete. There have been threads in the past about how HP-Tuners cannot disable the CAT O2 diagnostics from running even with the "MIL/SES" codes and CEL triggers disabled..
Does anyone know if there is a way to do this now? I have HP-Tuners Pro and I want to prevent the ECU from running this check as I am continually dropping pulley sizes and the fuel-enrichment condition that occurs during this check is generating some engine knock even at lower throttle conditions due to how much fuel is being added.
Thanks in advance!