2003 TJ 4.0: Having a b!+@# of a time diagnosing the problem. So far I've replaced the TPS (not Mopar), all Injectors, all Plugs (correctly gapped), Fuel Pump and Rear Fuel Lines. Cats seem to be working as I'm getting temps roughly 100-150º higher downstream. Starts great, Idles good but it has no power....almost zero up slight hills. Any ideas on what it could be?
Thanks.
Thanks.
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