Throttle position sensor going out
The throttle position sensor in my car could be going out or is already bad.
Experienced mechanics share their insights in answering this question :
If your vehicles throttle position sensor has gone bad then the vehicle may be put into reduced power mode. In reduced power mode the vehicle will not drive over a certain RPM and engine speed. Usually, a Check Engine light will be activated if this has occurred. A quick scan of the trouble codes by a knowledgable technician, such as one from YourMechanic, would shed some insight on the nature and source of the problem.
How to Identify and Fix Common car Problems ?
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A malfunctioning TPS will cause your engine to run poorly. Generally the engine will idle fine but will have difficulty accelerating. This is because the computer isn`t telling the engine to inject as much fuel as is required, while at the same time airflow is increasing.
If your sensor just needs repairs, it could be the result of faulty or loose wiring. Just like any other electrical wiring, your throttle position sensor is susceptible to corrosion and faulty connections.
Cleaning fuel injectors is generally not a do-it-yourself project, but you can clean the throttle body on your vehicle with common tools and specialized spray cleaners. While throttle-body cleaning is good preventative car maintenance, it should also help engine drivability.
the average lifespan of a throttle position sensor is just over 80,000 miles, though some will last for the lifetime of the car. if a tps is suspect, a professional repair facility will perform electrical testing on the sensor.
Within a motorsport engine – or the engine of any vehicle, there is a throttle valve. The throttle valve opens when the accelerator pedal is compressed. A throttle position sensor is used to measure how open the throttle valve is and therefore controls the amount of air which can flow into the engines intake manifold.
With poor electrical connectivity, you`ll experience unpredictable electrical signals that can confuse you. The throttle body will relay false information to the vehicle`s computer. This is a serious issue because it will cause the fuel-air mixture not to be in the correct proportions.
Can you drive without a throttle position sensor? You can, but the engine will run poorly and not only will you waste fuel and create huge emissions, you`ll cause major carbon buildup in the engine and exhaust. That will cost you in maintenance down the road, if not right away.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
Need to replace Accelerator Pedal Position Sensor
ANSWER : The TPS and a scanner to test it is all that you need. The code P0122 points to the sensor but a through pinpoint test should be done to make sure the sensor is failing before you replace it.
If you need help with this, contact a certified mechanic who can diagnose your Check Engine Light code and make the necessary repairs to your vehicle.
Car won’t accelerate past 25 mph and makes deep noise when you try too replaced o2 sensor maf sensor/ throttle body does rattle
ANSWER : Hi there. It is quite possible that your car has entered what we call a fail safe or "limp mode" due to an error code being activated and stored in the ECU. This will occur when the ECU or a sensor detects a mechanical or electrical fault on one or several fuel, ignition, cooling or powertrain systems. It’s designed to allow you to safely "limp" your car to a repair facility or home so a professional mobile mechanic can complete a car is slow to accelerate inspection and determine the right course of action. It is also possible that this issue is caused by a loose vacuum line or other component like the throttle position sensor.
Throttle position sensor reads 13% at idle and 75% fully open.
ANSWER : No, you can’t start messing with those because there are all kinds of sensors. If you set that up in the throttle position sensor, it’s going to get wrong reading, and may get the wrong amount of air and confuse the computer.
It would probably send trouble codes and stuff. Basically, I would recommend having a mechanic analyze the data live. They can hook up the scan tool and look at live mode 6 data to see if there is anything else that’s having a problem.
Maybe the fuel injectors are not pulsing right. There are all kinds of things that can go wrong. Wiring could be having a problem on it.
But you just don’t want to mess with those screws. In the past, I attempted to do that as experiments on cars that were really junky and falling apart, and it never worked out right. Either, the Check Engine Light came on or they just wouldn’t run right. You’ve got to find out what the problem is and not start bypassing that stuff like that, because if you do, it gets even more complex trying to figure out what’s wrong.
throttle position sensor can it affect coolant temperature?
ANSWER : The throttle position sensor will not have anything to do with the coolant temperature. The problem with the coolant temperature gauge you had may be due to the coolant change that was done or the system itself has a problem. You stated that the fluids got changed but did not mention if the coolant was changed specifically.
In this situation, either your thermostat got stuck momentarily or there was an air pocket. Once it cleared, the thermostat opened normally and the flow returned back in the cooling system. I would have the system checked to make sure the coolant is full and that everything functions correctly.
If you decide to get this fixed, consider YourMechanic, as a certified technician can diagnose your cooling system and make the necessary repairs. Good luck.
CHECK ENGINE LIGHT ON
ANSWER : The on board diagnostic (OBD) sets a pending code each time the ECU detects a problem. It confirms the code if it sees the same problem twice. So you’re really only dealing with the two codes : P0016 and 17.These codes are telling you that the timing between the crankshaft and the camshaft are off on Bank 1 (the driver’s side) cylinder bank. This could be a sensor error, a problem in the reluctor ring on the harmonic balancer, or a timing chain problem. Without doing a thorough diagnosis, it’s impossible to say what parts specifically need to be replaced. If you contact Your Mechanic, they can send a technician to your home or office to investigate the codes on you Mercedes and then let you know what it will take to fix it.
Throttle body position sensor
ANSWER : The rumbling noise may be coming from the loose catalyst in the exhaust piping. It would need to be verified by a road test to listen to the noise. If the catalyst is breaking up in the exhaust then the catalyst would need to be replaced. Another possible cause is a vibration from the cooling fan.
If you can duplicate the noise by revving and letting off the gas then you may be able to isolate the noise and the failure. Either the fan clutch or the exhaust catalyst will be at fault.
If you need help with these checks, consider YourMechanic, as one of our mobile technicians can come to your home or office to diagnose the rumble firsthand for an accurate repair.
Hello trying to trace the wires from throttle position sensor,because sensor not responding to throttle body
ANSWER : Hi there. Check the harness to the transmission and see if there is power. If there is no power, then check the harness for any broken wires or burned wires that could keep the transmission from working. If you had to short out a sensor to make it work, then check the circuit that the sensor is plugged into for proper continuity. Be very careful when touching wires to other circuits for it could short out he computer. If you need further assistance troubleshooting your vehicle, then seek out a technician, such as one from Your Mechanic, that can assist you with the throttle position issue.
Does my truck use a throttle position sensor with or without lever?
ANSWER : Hi there. The best way is to look at the throttle position sensor on your vehicle and see if it has a lever on it or not. If there is no lever, then you would need to purchase the sensor with no lever. If the sensor has a lever, then you will need to purchase the sensor with a lever. If you need further assistance with the location of the throttle position sensor, then seek out a professional, such as one from Your Mechanic, to help you.
