what could be causing the throttle body position sensor on a 1996 plymouth neon to go bad
Last Updated on Dec xv, 2021
Though your machine was running simply fine the last fourth dimension you drove information technology, it's suddenly interim really strange. The idle may be surging, the car jerking while driving, and it might fifty-fifty stall out at a end lite. Your bank check engine light is probably on as well.
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Without plugging in a code reader, information technology'southward a good guess you're having some sort of problem with the throttle position sensor. Hither we get over how a throttle position sensor (TPS) works, go over the virtually common bad throttle position sensor symptoms, and provide some estimates on its replacement toll.
How a Throttle Position Sensor Works
Every vehicle with an internal combustion engine has something chosen a throttle trunk, besides referred to equally a butterfly valve. This valve is positioned in the middle of the intake manifold and the air filter.
The job of the throttle is to manage the air flow that goes into the engine. Equally the driver steps on the gas pedal to accelerate the vehicle, more air is needed in the internal combustion chamber of the engine.
While more air enters the engine, more fuel gets injected into information technology as well. The ignition of this mixture is how engine ability is created.
The position of the throttle determines how much air enters the engine. There is a component in the fuel management arrangement called a throttle position sensor which detects this position.
When you want to advance the vehicle, the sensor gives the throttle position information to the engine control unit. From there, the engine control unit will manage the throttle and allow information technology to take in whatever amount of air is needed in the engine.
The harder you stride on the gas pedal, the wider the throttle will open to allow more than air catamenia into the engine. At the same time, more fuel will be injected into the engine cylinders to create a balanced mixture for combustion.
See As well: iii Causes of an Electronic Throttle Control Light On
Common Symptoms of a Bad Throttle Position Sensor
If you have a bad throttle position sensor, then the engine control unit (ECU) will not know the position of the throttle. As a outcome, the engine control unit of measurement will not be able to properly regulate the corporeality of air that enters the engine and then that a successful combustion can be made. This will ultimately bear upon your driving ability to the point where it is unsafe to stay on the route.
When y'all have a damaged or worn out throttle position sensor, you volition notice the symptoms of this problem correct abroad. You lot might non know it is the sensor's mistake, merely the symptoms should motivate y'all plenty to accept your vehicle to the mechanic and detect out what they think.
Chances are, they volition tell you it is the throttle position sensor if you experience 2 or more than of the post-obit symptoms.
Related: Symptoms of a Bad Throttle Body
#i – Bank check Engine Warning Light
The throttle position sensor is a key component of the overall internal combustion process. If this sensor goes bad, your engine will ultimately fail to produce sufficient power to accommodate your acceleration needs.
The engine control unit of measurement will detect this problem when it exists and so activate the Check Engine alarm low-cal on the dashboard. That fashion, you volition be aware that your engine has some kind of problem that needs to be addressed.
Mutual diagnostic trouble codes related to the TPS include: P0121, P0122, P0123, P0124, P2135, and P2138.
#2 – Weak Acceleration
A bad throttle position sensor means the engine control unit cannot manage the throttle position properly. The engine won't be able to receive the proper amount of air considering of this. Whenever you get to accelerate your vehicle under these atmospheric condition, the acceleration will exist very weak.
You'll exist lucky if you tin can move the vehicle faster than 30 miles per hour. This will cause you to swallow a lot of gasoline, and ultimately ruining your motorcar'southward fuel economy.
#3 – Engine Crude Idling
When you stop or park your vehicle somewhere, its idle RPM should exist somewhere in the vicinity of 600 to 900 RPM. If you detect the engine RPM below or in a higher place that range while your vehicle is stopped or parked, then yous accept a rough or erratic idling problem with your engine.
This may be due to a bad throttle position sensor if you've experienced some of the other symptoms on this list.
#4 – Excess Fuel Consumption
Since the throttle position sensor has a major effect on proper air/fuel mixture for burning, inaccurate readings can cause besides much fuel to injected into the combustion chamber. This volition cause a rich air/fuel ratio which will result in poor fuel economy.
In addition, other sensors depend on authentic readings from the TPS. When that doesn't happen, those sensors volition ofttimes compensate for also piffling or too much airflow. The end result is usually the need to go make full on gas more frequently than usual.
#v – Acceleration Changes
Ane very strange acceleration trouble that can occur is increased acceleration without stepping on the gas pedal. You lot could be driving along on the road, and your motorcar volition just speed up on its ain out of the blue. This tin obviously be very dangerous.
Out of all the acceleration problems that tin occur, this particular one is a clear indicator that the throttle position sensor is to blame.
Replacement Cost
An engine needs the right amount of air merely like information technology needs the right amount of fuel. If the engine does not receive the proper air amount, then its internal combustion process is compromised. This means inadequate power generation and a whole listing of other problems.
Y'all won't be able to postpone this situation for likewise much longer. You'll take no choice but to get a diagnostic cheque done on your vehicle past a certified mechanic.
If it is revealed that your throttle position sensor is bad, then you lot will demand to replace it right away. The average replacement cost for the throttle position sensor is anywhere from $110 to $200. The parts price is anywhere from $75 to $105 while the labor cost is anywhere from $35 to $95.
In addition, you will accept to account for any extra fees and taxes that become added on likewise. Overall, you shouldn't have to spend more than than $250 to get this replacement task done. If yous store around for an cheap mechanic, y'all might find a lower hourly charge per unit.
Source: https://cartreatments.com/throttle-position-sensor-symptoms/
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