I just bought a brand new O2 sensor and it is working as it should, I dont know what else to check
it has a good gas filter too… and I just cleaned the inyectores.
Any ideas…
check your fuel pressure with a gauge, and go from there
ive had this problem on my da for months. ive changed the fuel filter, pressure regulator, and o2 censor and nothing worked. finally i rewired my o2 sensor from the ecu all the way to the headers running a seperate wire through the fire wall. now it works!!!
Make sure your o2 is in the correct voltage range… What brand did you get? Bosche is crap Denso is better.