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  1. J

    Cel 173 & 176

    I have a 1994 Ford Ranger 4.0L with codes 173 & 176. (System rich bank 1, and system lean bank 2.) Both O2 sensors bad? Bad fuel pressure regulator? Plugs and wires bad? All of the above? The truck cuts out at low speeds, but when I floor it, it will pick up power big time. Where should I go first?
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