Fuel injection systems -4
4-2.4 Throttle position sensor (TPS)
* Location
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throttle opening degree sensor (TPS) principle
1. functions: sensing the throttle opening to determine the driving situation, determine the amount of fuel injectionAnd
ignition timing.
2. principle: the use of the variable resistor, changes in the measured angle.
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throttle opening sensor (TPS) measurements
Fault phenomenon:
idle speed high to 3000rpm or so throttle unresponsive.
EMS light is on 0 length short (throttle opening degree sensor failure).
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maintenance Preliminary Gauge connected:
1.overhaul the initial impression: why the first check the failures lights, whether such failure of two or more.
2.failure phenomenon off with: As the throttle opening degree of perception failure, so can not provide the correct
signalsto the ECU can not determine the throttle opened so the slow throttle response, but also because of this
reason for the prevention of engine speed when the throttle retractablelow flame, the ISC will idle speed increased
to about 3000rpm.
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