I bought a O2 sensor and new NGK power wire to remove the stock ones.
the car was running ok. the o2 sensor was old and dirty and i decided to buy a new one from denso.
Today i fitted the new ngk wires and the new o2 sensor. To fit the O2 sensor that came with a different male i filed the edges to fitted they lock the same apart from the male plastic cover once connected everything and went for a run I noticed the car loss power between 2000-3000 rpm
any light came out from the dash.
anyone know what could cause that issue?