Need the great Ranger Guru's help Eng light issue
Ok I have been trying to get this dam check eng, light off in my truck for weeks
Let me start at the begining I had something break loose in my Cat. and it rattled all the time internally not the shield so I replaced it with new, While it was off the truck I had to move the truck in and out of the garage so Check Eng light came on. installed new cat and reset light and all good for about 3 weeks
Then light came on again this time I checked codes PO171 and PO174
Fuel trim Bank one and two Lean condition.
I have replaced both o2 sensors uppers on bank 1 and 2
replaced all spark plugs
clean air filter , Cleaned Mass air flow
have run a can or 2 of injector cleaner through the tank
It is driving me crazy now I need to get through emmisions to get new tags
any idea can't keep spending money and not fixing the issue
Every time I reset the code before I did new plugs, light would stay off for a least three start cycles, now it comes on in about 4 mins
It could be fuel pressure is low but the truck really runs so good I am baffled I wonder if the new cat convert is bad I am almost to the point of reinstalling the old one and see if the light goes out.
Anyone have any idieas