QuestionRagu, hows things going ?, ok heres whats going on , 1989, E-150 , 5.0 liter, my son was driving it said it started losing power like it was running on 4 cyls , died out would not re-start, killed battery, I towed it home , it fired up running rough , my fuel pressure at idle is 35 psi , I have good spark going to plugs, pulled plugs cleaned an regapped ( they looked ok )tried to drive it will only go like 35, MPH< wide open,flused injectors , cleaned throttle plate an ICS,finally dropped exhaust at Y pipe an drove it,{ OH YEA GRAND NATIONALS } it seemed to run better finally had a little balls to it{ so Iam thinking the exhaust may be plugged, going to put temp mufflers on it an try again. How can I check the fuel injectors it still seems to idle rough' miss,????, the truck has 52,873 miles on it, also I got codes KOEO, 12,53, an KOER, 21, 41, any help would be greatly helpful, thanks , Jim....
Answerjim is there a lot of black smoke comming out of the tail pipes? ck the coil wire to see if you have like a white power on either ends if so the coil is going bad and replace the wires. next time all you have to do is just removr the o2 sensors and then you could drive it it the same as droping the ehxaust ,.let me ck out the codes and send you a pinpoint test to do
