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Topic Review (Newest First)
12-07-2008 01:45 PM
achappy44 thanx for the reply i changed the o2 sensor and the cel went off never by universal and thank baby jesus for warranties at autozone.
12-07-2008 12:05 PM
achappy44 i thought it might be the 02 also but why wouldn't it come up in a code
i think they were bosch plugs but don't remember.
12-07-2008 11:52 AM
Rawkon return and try replacing the original 02 you replaced. sounds like its bad or they gave you the wrong thing. also are you sure plug wires are in the correct location??? what plugs did you use?
12-07-2008 08:32 AM
achappy44
running rich still

hi i'm new to this forum, and have been reading up on my problem. I have a 97 tj 2.5 4 cyl, 128,000miles. i bought it a couple months ago. seemed to run fine but the cel light was on. had it checked and it had bad o2 upstream, and multiple misfire. changed o2 sensor and plugs, wires, cap, rotor, oil, thermostat, normal tune up. ran good for a day. then it started idling like crap and blowing black smoke. now throws code 51 and 52. too rich and too lean. i've now replaced exhaust manifold, downstream o2, checked for vaccum leaks and iac. still running rich and crappy idle. any ideas would be greatly appreciated. thanks in advance

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