Neon L4-2.0L DOHC (1996)
Theory of Operation:
The TP sensor contains a potentiometer that is operated by the throttle blade shaft. As a throttle plate rotates, the TP sensor provides a variable 0
to 5-volt signal to PCM. The voltage is directly proportional to throttle angle. When the throttle plate is at rest, the voltage is low. When the
throttle is fully open, the voltage is high. With this signal, the PCM can determine precise throttle position under all operating conditions. The TP
sensor receives a 5-volt supply from the PCM. The sensor ground is provided by the PCM.
Possible Causes:
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Failed powertrain control module
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Connector wires
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TP sensor failure
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Vehicle speed
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Mechanical failure
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MAP sensor
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Connector terminals
