I have an 04 grand Cherokee lerado, come to find out it’s a Cali Jeep with three cats, the Jeep started acting up n will just outta no where spit n sputter and when I start it is when it does so mostly…while sputtering if I give it gas it almost acts as if it’s either getting to much or none at all .. I cleaned throttle body spotless and cleaned throttle contra sensor hoping that was it but it still does it quit frequently, new plugs ,but this p0601 code shows up a lot just wanting some ideas tricks or what to do’s pls