Operation CHARM
: Car repair manuals for everyone.
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Plymouth
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1995
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Neon L4-2.0L SOHC
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Description and Operation
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Functional Operation
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Inputs and Outputs
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Outputs
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Tachometer
Tachometer
The PCM operates the tachometer on the instrument panel.
The PCM calculates engine RPM from the
crankshaft position sensor
input.