RaJeana
Junior Member
Have a 98 Ram 1500 half ton 4wd with a 5.9 automatic. Under acceleration it has started flashing the check engine light 27 times . I don't think it will make it back home if i try to take it to town to get it scanned. It dies when first put in drive if you don't give it extra gas idle is rough . Exhaust still blowing seemingly normal but smells different actually no smell now used to smell but not like fuel . Cat doesn't seem to be overly hot but muffler does have alot of rust damage . I can't flip the key to get it to throw the code because it hangs so I'm having to count this while driving . I can't find a definite answer as to which code this stands for but i believe o2 sensor if so is there anyway to tell if its upstream or downstream ? Does it have 2 upstream if so should i replace both ?