my car toyota wish 4WD 1.79 2003 is not performing well.I have removed the catalyst converter so it has reduced in power and accerlartion as well as fuel economy.Am i supposed to put the converter back
scan for codes , I don't think the O2 sensors will send a proper signal without the converter especially if there\'s two of them , it may be programmed not to run if you remove the cats. The polar bears hate you .
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