The Throttle Position sensor signals the Engine Control Module as to the current position of the engine throttle valve.
The current throttle valve opening is based on the driver's input from the gas pedal. The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.
As the engine heats up and combustion becomes easier and more complete, the PCM will command the idling control valve to increase the amount of air entering the engine to suit the changing conditions. However, when the load on the engine changes, say, when some electrical consumers or other systems are either turned on or off, the PCM adapts the signal voltage to the idle control valve to ensure that the idling speed remains stable, and at the RPM specified by the manufacturer.
Difficulty Level (Soso)
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Repair Time (30 Min.)
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Cost Prediction : $ 80-120 |
If your throttle position (tp) sensor circuit intermittent high voltage check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system B0434 and engine control unit are in charge of monitoring a bunch of different throttle position (tp) sensor circuit intermittent high voltage, and if they get a reading that's a little out of whack, up pops the check engine light.
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B0434 is a kind of Body Trouble Code
Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems. |
You can view according B0434 DTC for your car model. We selected several models to see obd2 solutions click and view it.
+B0434 Dkw Meisterklasse | +B0434 Daewoo Bucrane | +B0434 Proton Gen2 | +B0434 Mazda 2 | +B0434 Dodge Challenger |