99 running bad after start

mlv1234

NAXJA Forum User
Location
fl
so i have a 99xj and it cranks right up but then when i get driving or let it sit it starts to idle rough and when im driving it will start sputtering but if i floor it it will clear right out. but when i shut it off for like 5min then restart it does the same thing. the codes its trowing is both O2 sensors are bad but i replaced them and same thing. fuel system cleaned, plugs, wires, cap, rotor not sure what to do next need help
 
most likely a crank position sensor. try unplugging and replugging after you clean the connections. if not then replace
 
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