broke timing belt b21 and replaced with b20 the muffler with aftermarket muffler changed the air intake to a cold air intake moved the battery to the trunk ran seprate 4 gauge amp wire to the starter main fuse terminal and replaced all ground wires with same 4 gauge amp wire
my 91 lude check egine light is on i read the blinks from the ECU and get a
code 43. i have changed the o2 sensor and reset the ECU. but i still get code 43 have changed the fuel filter to make sure the the fuel system is kool. i also burn really rich my exhaust is coated with chalky black resin.
was wonder if my cat converter would have any thing to do with it.