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I was going through the C5 FAQs and I came across the instructions of how to reset the PCM after changing the intake system. I have changed my intake system a few months ago, the work was done at a local Corvette tuner, but I am almost sure that they didn’t reset the PCM.
Do I need to do the PCM reset or did the PCM adjusted automatically after all this time (six months plus) driving the car? I have not notice any problems with the car.
The PCM will adjust by itself. It will adjust fuel trims based on the O2 sensor output to get the air/fuel ratio adjusted for the higher airflow. It doesn't take long to do this, usually it has stabilized within a couple of hundred miles.