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Andy Dingley (talk | contribs) fact tagging some dubious claims - the 1970s claim is tenuous and only makes remote sense for TCU, not PCM |
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The primary inputs to the PCM come from many sensors, of different types, that are spread around the car. Most of them are oriented toward engine management and performance. These sensors fail at a much higher rate than any of the computers do.
Early use of the powertrain control module dates back to the late 1970s{{fact|date=February 2017}} - official phasing in{{clarify|date=February 2017}} of the PCM occurred during the early 1980s when used in conjunction with electronic controlled carburetors and [[lockup torque converter]]s (at the time conventional 3-speed automatics received lockup converters at the same time overdrives were introduced{{fact|date=February 2017}}).
==Other names==
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