HIGH PERFORMANCE TUNING KNOWLEDGE
  • Oxygen Sensor Novel Starting in 3... 2... 1...

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    Oxygen Sensor Novel Starting in 3... 2... 1...
    When using an oxygen sensor, the sensor has a heat-up time and a dead/off time. The heat-up time is the time needed to warm up so it can read correctly. Anytime you are wide open throttle the PCM once again goes into open loop, not caring what the oxygen sensor has to say. That is called our dead/off time.

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  • My wideband drops out, must be bad.

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    wideband sniffer
    If you have ever ran into this intermittent issue, you know it can be a pain in the brain. Don’t immediately expect it’s a wideband problem, look at your trusty scanner and compare your so called “Bad” wideband to a few other things.

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