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@Muddy, When I bought my 2003 Liberty Sport 3.7 V6 the O2 wires were just hanging unconnected to the O2 sensors, - about 8 months ago. After I got 18 ECM codes down to 3, - now with 2 of them O2 sensors each rail - I replaced all coils and plugs, and TPS, PCV, and many other sensors around the...

@kj.priamo You may want to try this easy way to clean all your injectors easily by this method below: I would pull the fuse to the fuel pump (front fuse box by radiator) - then run Seafoam straight thru, possibly 2 cans. I haven't tried this but will, - back in the early 70's I used to use...

I still would change the coils with Denso coils and use NGK plugs set at .040 just for openers to troubleshooting this issue first, and every coil/plug I replaced I started it up to make sure it ran, you have to start with a good base then tackle the other codes. - I went thru this, and if you...

I had the same and I put in NGK plugs gaped at .040 and put in new Denso Ignition coils and fixed mine - even with bad O2 sensors throwing codes, then resolved most of the 18 ECM codes replacing sensors on the throttle body, TPS, etc - she runs fine, just the O2 sensors are throwing codes...