I searched and incorporated what I found in this post but still have questions.
car throws cel code 43 comes off and on. I have read that it usually cause by the o2. but no one has post what it causes the motor to run like. My car has a flat spot in the rpm range where it spits and sputters. At about 2200-3400 the car does this hesitation.
So I change out the fuel pump w/ a new 255 and a new fuel filter. If the o2 doesn't fix the hesitation what do you guys think it could be caused by. I am goning to have get some new fuel injectors. Any input would be appreciated. Thanks