How can I know if my car is running rich?
I was told once you mod the exhaust system: eliminate Pre-cats and Cat and then install a DP and Catback: The O2 sensors will no longer read the proper A/F Mixture because of the difference in air flow, pressure and temp in the exhaust line, is this true?
( I was even told once these mods done, we will run much richer cause the O2 sensor is no longer reading correctly)
If so even an A/F gauge (that is connected to the O2 sensor) will give out incorrect readings as well as a datalogger that also uses the O2 sensor throught the ECU to read A/F mixture?
So if this is the case how do we read A/F? and set the proper fuel correction?
I was told once you mod the exhaust system: eliminate Pre-cats and Cat and then install a DP and Catback: The O2 sensors will no longer read the proper A/F Mixture because of the difference in air flow, pressure and temp in the exhaust line, is this true?
( I was even told once these mods done, we will run much richer cause the O2 sensor is no longer reading correctly)
If so even an A/F gauge (that is connected to the O2 sensor) will give out incorrect readings as well as a datalogger that also uses the O2 sensor throught the ECU to read A/F mixture?
So if this is the case how do we read A/F? and set the proper fuel correction?