kylightning73
Full Access Member
got a question. i put a new b&b exhaust on my truck with belanger straight headers from roe racing. now this did away with my downstream o2 sensor. trip a code of course. so i got o2 simulators from roe racing, put those on, retuned my truck with my STC tuner and now is throwing a low voltage code to my o2 sensor. any way to fix this? and does it affect the engine performance?