One response to “ I need advise on tuning my 4 banger ...”

  1. bluegti

    the o2 sensor does not control it measures oxygen content in exhaust stream which determines your air fuel ratio the ecu tries to maintain a ratio of 14.7 to 1 or close to it as possible . so to answer your question you would need to run a stand alone ecu which can be tuned to your parameters or a similar device that can control fuel mixture .

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