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They are available for the following Lexus IS years:,05, 04, 03, 02, PartsGeek had what I needed for my Land Rover and was quick to get it shipped. The package arrived well-packed almost overkill for the parts really. The site is easy to use and they kept me in Ordering from PartsGeek was easy.

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Please make sure that you are posting in the form of a question. Please enter a question. Connector housing is compatible with original factory terminals and wire. If you need to replace a broken or cracked original OEM housing, simply de-pin and replace with this one, crimping on new terminals only if desired. This kit includes all necessary parts listed below for connector replacement; Connector housing x 1 Wire seal x 4 sized for M Tefzel wire Cavity plug x 1 Terminal AWG x 5 If you are unsure on connector fitment compatibility, please verify photos carefully.

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No customer reviews. There's a problem loading this menu right now. Learn more about Amazon Prime. Get free delivery with Amazon Prime. Back to top.How much?! The throttle position sensor in your engine transmits information about the position of your throttle to the electronic control module or ECM. It consists of mechanical parts which may become worn and require replacement. A malfunctioning throttle position sensor will relay bad data to your car's computer and usually result in poor fuel economy.

Knowing the symptoms of a defective throttle position sensor can help you quickly diagnose the problem and make needed corrections. How to Test a Throttle Position Sensor You can use a standard ohm meter to test a switch and combination type throttle position sensor and a volt meter to test a throttle position sensor that uses a potentiometer.

Check the resistance in various accelerator pedal positions, record the resistance and compare against values listed as acceptable in a quality car repair manuals such as Chilton or Haynes to determine whether or not the sensor needs to be replaced.

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Featured Stories. Radiator Repair Transmission Repair. Symptoms of a Faulty Throttle Position Sensor An unexplainable bucking and jerking in the vehicle Sudden idle surges Sudden engine stalling without any apparent reason Hesitation while accelerating Sudden surges in speed while driving on the highway Intermittently flashing of check engine light for no apparent reason Difficulties in changing gears A drastic drop in fuel economy How to Test a Throttle Position Sensor You can use a standard ohm meter to test a switch and combination type throttle position sensor and a volt meter to test a throttle position sensor that uses a potentiometer.

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Select a Model. Find Used Cars Browse a huge selection of local inventory. Recent Articles. Research Cars Select a Make.We offer a full selection of genuine Lexus IS Throttle Position Sensors, engineered specifically to restore factory performance.

Please narrow the TPS Switch results by selecting the vehicle. This part is a packaged part and contains multiple quantities of: Pack Qty: 4. This part is a packaged part and contains multiple quantities of the same item. In an effort to simplify packaging Lexus will sometimes include multiple parts in a package. Select Model.

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Get the Best Priced Lexus IS300 Throttle Position Sensor

Select Submodel. Related Lexus IS Parts. All Lexus parts were made to having safety and comfortable experience for the driver, especially the Lexus Throttle Position Sensor. All the Lexus parts, however, were not designed to last forever, check your old Lexus IS Throttle Position Sensor and replace it when it's necessary. Part No. This part contains hazardous material.

This part is a packaged part and contains multiple quantities of: Pack Qty: 4 This part is a packaged part and contains multiple quantities of the same item. Continue Shopping Checkout.Replacing the TPS is easy, but adjusting it is a little tricky. I'll show you how to adjust it by the book and I'll explain my method as well. The two metal prongs under the TPS move when the throttle is pressed.

I added the red dashes in this pic so you can visualize where the metal prongs from the last pic line up with the sensor. Start with the bottom of the sensor positioned where the green outline is in this pic, then rotate the sensor clockwise until you can install the 2 screws.

Leave the screws loose so you can still rotate the sensor during the adjustment. Unless the throttle body is removed it's pretty much impossible to do this using the standard ohmmeter probes. There's just no room and plus you need to be able to rotate the TPS. It could probably be done using some very tiny clips.

There should be continuity. There should not be any continuity. My method relies on knowing the correct idle speed and doing a little trial and error. It may not be as elegant as the official method, but it does work. So by turning the TPS clockwise, which puts more tension on the sensor, the idle speed is raised. It's the same as when you put your foot on the gas and the throttle opens, doing this puts tension on the TPS. Since the sensor doesn't rotate much you can tell that small movements yield big changes in the idle speed.

My first test drive the sensor was set too low and it caused very jumpy highway performance. I then adjusted it a little higher and it was much better. Since it only takes a few seconds and a screwdriver to adjust the TPS doing it this way is easier.

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And now for the Lexls. When the TPS is turned as far clockwise as it will go the idle speed will be at its highest. When the TPS is turned as far counter-clockwise as it will go the idle speed will be at its lowest.

is300 tps sensor

Support LexLS.Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing. Average rating from customers who received a Throttle Position Sensor Replacement. Learn More. Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM. For a car to run smoothly, it needs the proper mixture of air and fuel. The amount of air in the engine is controlled by the air intake system. A throttle body is part of the air intake system that helps control the amount of air that gets into the engine.

The throttle body has a throttle plate. If the plate is closed, it prevents the air from getting into the engine. When you push the gas pedal, it opens the plate, allowing the air to enter the engine.

is300 tps sensor

The amount of air depends on the position of the plate, which is controlled by the gas pedal. The harder you push the gas pedal, the wider the plate will open, and more air will flow to the engine. This means more power and more speed. The throttle position sensor reports the position of the gas pedal to the computer in your car Engine Control Unit.

The computer then determines the position of the throttle plate. It also calculates the amount of air flow to the engine and the amount of fuel to be injected for the required ratio of air-fuel mixture. The throttle position sensor also controls the shifting of the gears. If this sensor stops working, the car's computer will not be able to calculate the right amount of fuel to be injected in the system.

It may not be able to change the gears. Your car will not get the right amount of power. It may not even start.

The Check Engine light may come on. If you notice that the gears are not changing properly, get the throttle position sensor TPS inspected. A good mechanic will clean the throttle body during a tune-up.

If the Check Engine light is on, get the car inspected as soon as you can. Your vehicle depends on an optimal mixture of air and fuel in order to run optimally.

is300 tps sensor

The amount of air that enters the engine is controlled by the air intake system. The faster your engine is moving, the more air it needs, so your air intake system is in tune with your gas pedal. The computer then chooses the optimal position for the throttle plate, which is the part of the air intake system that lets air into the engine.

When the throttle position sensor malfunctions, the engine control unit has no information about the gas pedal, and the throttle plate is not utilized.

As a result, your vehicle will not get the right amount of air into the engine, and your engine will lose power and run very poorly.

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In some cases, this will keep your vehicle from being able to change gears. Get an upfront price. Service Area. YourMechanic Benefits Online Booking. Mechanic comes to you. Free 50 point safety inspection. See availability. Keep in mind: When the throttle position sensor is repaired or replaced, it will need to have the minimum idle speed reset to factory specs, and the trouble codes will need to be cleared.I have a IS with aboutmiles.

Recently, I have started having issues with acceleration.


First thing in the morning when I start the car, it drives great and normal. Then after about mins, the engine noticably bogs down, and when I push down the accelerator, the cars does not react. I have to push the pedal all the way to the floorborad in order for the car to move. I changed the O2 sensor as I wire had come loose, but that did not fix the problem.

The check engine and trac lights are also on; the code i get for the check engine light is P I have cleaned the MAF and throttle body, and no results. Any thoughts??? I'll check that out and see hopefully that works. The problem has been consistent over the past two weeks - the car runs fine when cold, and once it heats up, it starts with the hesitation and the accelrator pedal problems.

I'll work on those items and post the results.

is300 tps sensor

Thanks for your response! Ok - i'll double check them. I looked once before and everything looked good. Also, if it were a loose hose, wouldn't the problem be a little more consistent? Basically, everytime I turn the car off and back on, it will drive fine for a few minutes, sometimes even the whole trip, but then just like that the engine will bog down and I have to depress the accelerator all the way down in order for the car to move I am having the same issue with my Lexus IS, I have the lagging throttle response from a standstill.

I give it some throttle and it hesitates for a second, then decides to go. Were you able to get this issue resolved or fixed at all? When I called the dealer and described my issue, he wanted me to go in for a diagnostic.

He stated that they have ECU reflashes for shifting issues, but he didn't know of anything for my complaint.

Lexus IS300 Throttle Position Sensor (TPS) Replacement at your home or office.

Looking to see if anyone here has dealt with this issue and if the reflash only will sort it out. I replaced the MAF 2 screws and a plug 1 minute job and it worked perfectly. However I am still experiencing that quirk during acceleration, specially when turning it hesitates to go and unless a step on in harder it won't react. I dont believe I followed this same steps do you think that the ECU is still in learning mode??? The same thing is happening to me.

The gas pedal just sinks in and I just have to press down harder for it to go.

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But it happens raondomly and consistanlty. Does the accelerator sinking have to do with the car or the same problems everyone else is having?

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